RUM-16470: Support Android API 37

[kikoveiga]

What does this PR do?

Targets Android API 37 and pulls the whole toolchain forward to match: AGP 8.13.2 → 9.2.1, Kotlin 2.0.21 → 2.3.20 (language/API level pinned to 2.1 for now), detekt 1.23.8 → 2.0.0-alpha.6 (new dev.detekt coordinates), Gradle 9.4.0 → 9.5.1, and Android Build Tools/Lint/compileSdk/targetSdk 36 → 37.

Key changes:

• Java 17 everywhere: all library modules now compile with sourceCompatibility/targetCompatibility 17 (previously 11); dropped the now-unused java11() helper.
• AGP 9 API migration: replaced deprecated sourceSets.srcDir/androidLint config with the new LibraryAndroidComponentsExtension/HostTestBuilder variant APIs; unit tests are now explicitly enabled per-variant since AGP 9 no longer enables them by default.
• detekt 2.x migration: new dev.detekt:* artifacts, detekt.yml schema changes (threshold → allowed*, with a value-shift), and a full rewrite of our custom rules from the old K1 BindingContext API to the Kotlin Analysis API (KaType-based instead of KotlinType-based).
• unmock 0.9.0 → 0.11.0 (required for detekt 2.x task classpath compatibility).
• SQLDelight 1.5.5 (com.squareup.sqldelight) → 2.3.2 (app.cash.sqldelight), including the new SQLite 3.24 dialect dependency; updated all generated extension/transaction call sites.
• Cronet 141.7340.3 → 143.7445.0, which gives cronet-api and cronet-shared distinct manifest packages — this removes the R8 -dontwarn/detached-configuration workarounds that were previously needed to avoid duplicate-class conflicts between the two AARs.
• kspTesting: switched from the unmaintained kotlin-compile-testing-ksp to dev.zacsweers.kctfork:ksp (0.12.1), needed for Kotlin 2.3 support.
• Removed the spek test engine (long unused) from the JUnit Platform config.
• Other dependency bumps for Kotlin 2.3 / AGP 9 compatibility: Apollo 4.3.3 → 4.4.3, coroutines 1.4.2 → 1.10.2, jUnitMockitoExt 5.4.0 → 5.12.0 (now pinned in lockstep with mockitoAndroid, see note below), androidLint 31.0.2 → 32.2.1.
• CI: unified GRADLE_USER_HOME across all GitLab jobs to $CI_PROJECT_DIR/cache so every Gradle invocation shares one cacheable location.

Motivation

Google requires new Play Store submissions/updates to target a recent API level; API 37 support needs to land before that deadline. Since AGP 9 is a prerequisite for API 37 support, and AGP 9 drops several deprecated APIs we relied on, this became a combined toolchain upgrade (AGP, Kotlin, detekt, Gradle, and the libraries whose old versions were incompatible with the new stack).

Additional Notes

• jUnitMockitoExt and mockitoAndroid must be kept in the same version: both pull in mockito-core, Gradle resolves to the higher of the two, and mockito-android ships the on-device MockMaker matched to that exact mockito-core version. A drift here doesn't fail the build — it silently breaks mocking at runtime on-device, which manifests as every batch upload getting dropped in reliability:core-it until tests time out. This was root-caused during this migration and is now called out inline in libs.versions.toml.
• Kotlin languageVersion/apiVersion are pinned at 2.1 rather than jumping straight to 2.3 — this cushions the migration and is a safe intermediate step.
• The kotlinAndroidPlugin classpath alias was removed from the root build.gradle.kts (dead code, AGP already brings it in via buildSrc).
• Detekt custom rules (ThreadSafety, UnsafeThirdPartyFunctionCall, InvalidStringFormat, etc.) were rewritten against the Kotlin Analysis API — behavior should be equivalent, but the underlying type-resolution mechanism changed, so these are worth a closer look in review.

[datadog-official]

🎉 All green!

🧪 All tests passed
❄️ No new flaky tests detected

🔄 Datadog retried 4 tests - 4 passed on retry

🎯 Code Coverage (details)
• Patch Coverage: 59.47%
• Overall Coverage: 71.21% (-1.61%)

_{This comment will be updated automatically if new data arrives.
🔗 Commit SHA: cb9b8f9 | Docs | Datadog PR Page | Give us feedback!}

[codecov-commenter]

Codecov Report

❌ Patch coverage is 79.06977% with 9 lines in your changes missing coverage. Please review.
✅ Project coverage is 73.07%. Comparing base (36202ff) to head (cb9b8f9).

Files with missing lines	Patch %	Lines
.../android/profiling/internal/ProfilingDataWriter.kt	0.00%	2 Missing ⚠️
...ndroid/trace/opentelemetry/internal/OtelContext.kt	33.33%	1 Missing and 1 partial ⚠️
...android/trace/internal/DatadogPropagationHelper.kt	0.00%	2 Missing ⚠️
...ebview/internal/replay/WebViewReplayEventMapper.kt	71.43%	0 Missing and 2 partials ⚠️
...nternal/recorder/listener/WindowsOnDrawListener.kt	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #3550      +/-   ##
===========================================
- Coverage    73.12%   73.07%   -0.06%     
===========================================
  Files         1001     1001              
  Lines        36647    36629      -18     
  Branches      6346     6340       -6     
===========================================
- Hits         26798    26763      -35     
- Misses        8032     8048      +16     
- Partials      1817     1818       +1     

Files with missing lines	Coverage Δ
...src/main/kotlin/com/datadog/android/DatadogSite.kt	100.00% <100.00%> (ø)
...atadog/android/core/configuration/Configuration.kt	98.13% <100.00%> (-0.94%)	⬇️
.../android/flags/openfeature/DatadogFlagsProvider.kt	88.89% <100.00%> (+0.25%)	⬆️
...in/com/datadog/android/flags/FlagsConfiguration.kt	86.05% <100.00%> (ø)
...n/com/datadog/android/flags/_FlagsInternalProxy.kt	0.00% <ø> (ø)
...tadog/android/flags/internal/DatadogFlagsClient.kt	92.22% <ø> (-0.64%)	⬇️
...lags/internal/repository/DefaultFlagsRepository.kt	67.27% <ø> (-1.15%)	⬇️
.../src/main/kotlin/com/datadog/android/log/Logger.kt	98.31% <ø> (ø)
...otlin/com/datadog/android/log/LogsConfiguration.kt	100.00% <100.00%> (ø)
...atadog/android/profiling/ProfilingConfiguration.kt	100.00% <ø> (ø)
... and 34 more

... and 129 files with indirect coverage changes

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