Bump org.jetbrains.kotlin:kotlin-reflect from 1.8.10 to 1.8.21

Bumps [org.jetbrains.kotlin:kotlin-reflect](https://github.com/JetBrains/kotlin) from 1.8.10 to 1.8.21.
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v1.8.10...v1.8.21)

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlin:kotlin-reflect
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

vector-app/build.gradle

@@ -450,7 +450,7 @@ dependencies {
     androidTestImplementation libs.mockk.mockkAndroid
     androidTestUtil libs.androidx.orchestrator
     androidTestImplementation libs.androidx.fragmentTesting
-    androidTestImplementation "org.jetbrains.kotlin:kotlin-reflect:1.8.10"
+    androidTestImplementation "org.jetbrains.kotlin:kotlin-reflect:1.8.21"
     debugImplementation libs.androidx.fragmentTestingManifest
     debugImplementation 'com.squareup.leakcanary:leakcanary-android:2.10'
 }

vector/build.gradle

@@ -335,5 +335,5 @@ dependencies {
     androidTestUtil libs.androidx.orchestrator
     debugImplementation libs.androidx.fragmentTestingManifest
     androidTestImplementation libs.androidx.fragmentTesting
-    androidTestImplementation "org.jetbrains.kotlin:kotlin-reflect:1.8.10"
+    androidTestImplementation "org.jetbrains.kotlin:kotlin-reflect:1.8.21"
 }