removed maven proxy

[fbzli]

Depends on #73

[Copilot]

Pull request overview

This PR removes the Maven proxy setup from the Android CI infrastructure. The maven-proxy-setup composite action is deleted, and all references to maven-proxy-url, maven-proxy-username, and maven-proxy-password inputs (and the artifactory secrets that fed them) are removed from base/app setup composite actions and the workflows that call them.

Changes:

• Delete the maven-proxy-setup composite action entirely.
• Remove the maven-proxy inputs and the corresponding setup step from android-base-setup and android-app-setup composite actions.
• Remove the maven-proxy secret pass-through from the five reusable workflows that consume these composites.

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
.github/actions/maven-proxy-setup/action.yml	Deletes the composite action that installed the Gradle init script for the Maven proxy.
.github/actions/android-base-setup/action.yml	Drops maven-proxy inputs, description, and the proxy setup step.
.github/actions/android-app-setup/action.yml	Drops maven-proxy inputs and stops forwarding them to base setup.
.github/workflows/android_library_artifactory.yml	Stops passing artifactory secrets as maven-proxy inputs.
.github/workflows/android_gradle_task.yml	Stops passing artifactory secrets as maven-proxy inputs.
.github/workflows/android_code_quality.yml	Removes maven-proxy inputs from both setup invocations.
.github/workflows/android_build_store_upload.yml	Removes maven-proxy inputs from both setup invocations.
.github/workflows/android_build_alpaka_upload.yml	Removes maven-proxy inputs from both setup invocations.

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