Bump org.robolectric:robolectric from 4.12.2 to 4.13 (#2039)

Bumps [org.robolectric:robolectric](https://github.com/robolectric/robolectric) from 4.12.2 to 4.13.
- [Release notes](https://github.com/robolectric/robolectric/releases)
- [Commits](robolectric/robolectric@robolectric-4.12.2...robolectric-4.13)

---
updated-dependencies:
- dependency-name: org.robolectric:robolectric
  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>

gradle/libs.versions.toml

@@ -105,4 +105,4 @@ android-sdkCommon = { module = "com.android.tools:sdk-common", version.ref = "an
 roborazzi-core = { module = "io.github.takahirom.roborazzi:roborazzi", version.ref = "roborazzi" }
 roborazzi-compose = { module = "io.github.takahirom.roborazzi:roborazzi-compose", version.ref = "roborazzi" }
 roborazzi-junit = { module = "io.github.takahirom.roborazzi:roborazzi-junit-rule", version.ref = "roborazzi" }
-robolectric = "org.robolectric:robolectric:4.12.2"
+robolectric = "org.robolectric:robolectric:4.13"