Dependabot not updating the gradle dependencies

Question

I have an Android module called "dependencies" in my app. That's how the Gradle file looks like.

dependencies {
    implementation 'androidx.core:core-ktx:1.7.0'
    implementation 'androidx.appcompat:appcompat:1.4.1'
    implementation 'com.google.android.material:material:1.6.0'
    implementation 'com.google.android.exoplayer:exoplayer:2.17.0'
    testImplementation 'junit:junit:4.13.1'
    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
}

and that's how my dependabot.yml looks like

version: 2
updates:
# Updates for Gradle dependencies used in the app      
    - package-ecosystem: gradle
      directory: "/dependencies/"
      schedule:
        interval: "daily"
      open-pull-requests-limit: 10

All the dependencies above have a higher version available but somehow the dependabot, is only creating the pull request for testImplementation 'junit:junit:4.13.1' and not for any other dependency. What's wrong with my setup here.