chore(deps): bump com.google.truth:truth from 1.4.1 to 1.4.2 in /pubsub

Bumps [com.google.truth:truth](https://github.com/google/truth) from 1.4.1 to 1.4.2.
- [Release notes](https://github.com/google/truth/releases)
- [Commits](google/truth@v1.4.1...v1.4.2)

---
updated-dependencies:
- dependency-name: com.google.truth:truth
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

pubsub/build.gradle.kts

@@ -15,7 +15,7 @@ dependencies {
     implementation("com.google.cloud:google-cloud-core")
     implementation("com.google.cloud:google-cloud-pubsub")
     implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.8.0")
-    testImplementation("com.google.truth:truth:1.4.1")
+    testImplementation("com.google.truth:truth:1.4.2")
     testImplementation("org.jetbrains.kotlin:kotlin-test-junit")
     // see: https://github.com/googleapis/sdk-platform-java/pull/1832
     modules {