Bump androidx.test.ext:junit-ktx from 1.1.5 to 1.2.1

Bumps androidx.test.ext:junit-ktx from 1.1.5 to 1.2.1.

---
updated-dependencies:
- dependency-name: androidx.test.ext:junit-ktx
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

gradle/libs.versions.toml

@@ -23,7 +23,7 @@ androidxMetrics = "1.0.0-beta01"
 androidxNavigation = "2.8.0-beta04"
 androidxProfileinstaller = "1.3.1"
 androidxTestCore = "1.6.1"
-androidxTestExt = "1.1.5"
+androidxTestExt = "1.2.1"
 androidxTestRules = "1.5.0"
 androidxTestRunner = "1.5.2"
 androidxTracing = "1.3.0-alpha02"