chore(deps): bump org.jetbrains.kotlinx:kotlinx-coroutines-core (#953)

Bumps [org.jetbrains.kotlinx:kotlinx-coroutines-core](https://github.com/Kotlin/kotlinx.coroutines) from 1.7.3 to 1.8.0.
- [Release notes](https://github.com/Kotlin/kotlinx.coroutines/releases)
- [Changelog](https://github.com/Kotlin/kotlinx.coroutines/blob/master/CHANGES.md)
- [Commits](Kotlin/kotlinx.coroutines@1.7.3...1.8.0)

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlinx:kotlinx-coroutines-core
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

pubsub/build.gradle.kts

@@ -14,7 +14,7 @@ dependencies {
     implementation(platform("com.google.cloud:libraries-bom:26.32.0"))
     implementation("com.google.cloud:google-cloud-core")
     implementation("com.google.cloud:google-cloud-pubsub")
-    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.7.3")
+    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.8.0")
     testImplementation("com.google.truth:truth:1.4.1")
     testImplementation("org.jetbrains.kotlin:kotlin-test-junit")
     // see: https://github.com/googleapis/sdk-platform-java/pull/1832