Bump com.approvaltests:approvaltests from 25.10.0 to 26.1.0

Bumps [com.approvaltests:approvaltests](https://github.com/approvals/ApprovalTests.Java) from 25.10.0 to 26.1.0.
- [Release notes](https://github.com/approvals/ApprovalTests.Java/releases)
- [Changelog](https://github.com/approvals/ApprovalTests.Java/blob/master/internal_documentation/release.md)
- [Commits](approvals/ApprovalTests.Java@25.10.0...26.1.0)

---
updated-dependencies:
- dependency-name: com.approvaltests:approvaltests
  dependency-version: 26.1.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

build.gradle.kts

@@ -34,7 +34,7 @@ dependencies {
     testImplementation(libs.mockk)
     testImplementation(libs.rapids.and.rivers.test)
     testImplementation(libs.kotest.assertions.core)
-    testImplementation("com.approvaltests:approvaltests:25.10.0")
+    testImplementation("com.approvaltests:approvaltests:26.1.0")
     testImplementation("io.kotest:kotest-property:${libs.versions.kotest.get()}")
 }