Bump robolectric from 4.9 to 4.9.1 (#426)

Bumps [robolectric](https://github.com/robolectric/robolectric) from 4.9 to 4.9.1.
- [Release notes](https://github.com/robolectric/robolectric/releases)
- [Commits](robolectric/robolectric@robolectric-4.9...robolectric-4.9.1)

---
updated-dependencies:
- dependency-name: org.robolectric:robolectric
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

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

splunk-otel-android-volley/build.gradle.kts

@@ -66,7 +66,7 @@ dependencies {
     testImplementation("junit:junit:4.13.2")
     testImplementation("org.assertj:assertj-core:3.23.1")
     testImplementation("io.opentelemetry:opentelemetry-sdk-testing")
-    testImplementation("org.robolectric:robolectric:4.9")
+    testImplementation("org.robolectric:robolectric:4.9.1")
     testImplementation("org.mockito:mockito-core:4.10.0")
     testImplementation("androidx.test:core:1.5.0")
     testImplementation("com.google.mockwebserver:mockwebserver:20130706")

splunk-otel-android/build.gradle.kts

@@ -68,7 +68,7 @@ dependencies {
     testImplementation("org.junit.jupiter:junit-jupiter-engine")
     testImplementation("org.junit.vintage:junit-vintage-engine")
     testImplementation("io.opentelemetry:opentelemetry-sdk-testing")
-    testImplementation("org.robolectric:robolectric:4.9")
+    testImplementation("org.robolectric:robolectric:4.9.1")
     testImplementation("androidx.test:core:1.5.0")
     testImplementation("org.assertj:assertj-core:3.23.1")
     testImplementation("org.awaitility:awaitility:4.2.0")