chore: move Spring Boot version into Gradle version catalog so Dependabot can track it

[Copilot]

Dependabot's Gradle parser cannot resolve versions declared as ext variables inside buildscript {} blocks, so Spring Boot was never bumped automatically.

Changes

• gradle/libs.versions.toml — adds [versions], [libraries], and [plugins] entries for Spring Boot:

  [versions]
  spring-boot = "4.0.3"
  
  [libraries]
  spring-boot-bom = { module = "org.springframework.boot:spring-boot-dependencies", version.ref = "spring-boot" }
  
  [plugins]
  spring-boot = { id = "org.springframework.boot", version.ref = "spring-boot" }

• vividus-to-xray-exporter, vividus-to-azure-devops-exporter, vividus-to-zephyr-exporter — replace buildscript {} + apply plugin: with the plugins {} DSL; replace the hardcoded BOM string with platform(libs.spring.boot.bom):

  // Before
  buildscript {
      ext { springBootVersion = '4.0.3' }
      dependencies { classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}") }
  }
  apply plugin: org.springframework.boot.gradle.plugin.SpringBootPlugin
  // ...
  implementation platform("org.springframework.boot:spring-boot-dependencies:${springBootVersion}")
  
  // After
  plugins {
      alias(libs.plugins.spring.boot)
  }
  // ...
  implementation platform(libs.spring.boot.bom)

• vividus-exporter-commons — removes the ext { springBootVersion } block; imports the BOM via platform(libs.spring.boot.bom) and drops the explicit version from each Spring Boot dependency.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.79%. Comparing base (fb2f164) to head (f2201af).
⚠️ Report is 3 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##             master    #6713   +/-   ##
=========================================
  Coverage     97.79%   97.79%           
  Complexity     7325     7325           
=========================================
  Files          1015     1015           
  Lines         21508    21508           
  Branches       1416     1416           
=========================================
  Hits          21033    21033           
  Misses          359      359           
  Partials        116      116           

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[github-actions]

Qodana for JVM

8 new problems were found

Inspection name	Severity	Problems
Vulnerable declared dependency	◽️ Notice	8

💡 Qodana analysis was run in the pull request mode: only the changed files were checked
☁️ View the detailed Qodana report

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[Copilot]

Pull request overview

Moves the Spring Boot version and coordinates into the Gradle version catalog so Dependabot can detect and bump Spring Boot automatically, and updates exporter modules to use the plugins {} DSL plus the catalog-provided Spring Boot BOM.

Changes:

• Added Spring Boot version, BOM library alias, and Spring Boot plugin alias to gradle/libs.versions.toml.
• Switched Zephyr/Xray/Azure DevOps exporter modules from buildscript {} + apply plugin to plugins { alias(...) }.
• Replaced hardcoded Spring Boot BOM coordinates / per-dependency versions with platform(libs.spring.boot.bom) and versionless Spring Boot starter declarations (where applicable).

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
gradle/libs.versions.toml	Adds Spring Boot version, BOM library entry, and Spring Boot plugin alias to the version catalog.
vividus-to-zephyr-exporter/build.gradle	Uses version-catalog plugin alias for Spring Boot and imports the Spring Boot BOM via libs.
vividus-to-xray-exporter/build.gradle	Uses version-catalog plugin alias for Spring Boot and imports the Spring Boot BOM via libs.
vividus-to-azure-devops-exporter/build.gradle	Uses version-catalog plugin alias for Spring Boot and imports the Spring Boot BOM via libs.
vividus-exporter-commons/build.gradle	Removes local Spring Boot version and relies on the catalog-provided Spring Boot BOM and versionless starters.