chore(deps): bump androidx.navigation:navigation-testing (#629)

Bumps androidx.navigation:navigation-testing from 2.8.3 to 2.8.4.

---
updated-dependencies:
- dependency-name: androidx.navigation:navigation-testing
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

app/build.gradle.kts

@@ -138,7 +138,7 @@ dependencies {
    androidTestImplementation("androidx.compose.ui:ui-test-junit4:$androidxTestKotlin")
     // Needed for createComposeRule, but not createAndroidComposeRule:
     debugImplementation("androidx.compose.ui:ui-test-manifest:$androidxTestKotlin")
-    androidTestImplementation("androidx.navigation:navigation-testing:2.8.3")
+    androidTestImplementation("androidx.navigation:navigation-testing:2.8.4")
     debugImplementation("androidx.fragment:fragment-testing:1.8.5")
     implementation("androidx.test:core-ktx:1.6.1")
     androidTestImplementation("androidx.test.espresso:espresso-core:3.6.1")