Add missing instruction to add proguard-rules.txt #266

	name: Android Lint

	on:
	push:
	branches: []
	pull_request:
	branches: []

	jobs:
	lint:
	runs-on: ubuntu-latest

	steps:
	- name: Install ninja-build
	run: sudo apt-get install -y ninja-build
	- name: Clone repository
	uses: actions/checkout@v4
	- name: Clone submodules
	run: git submodule update --init --recursive --remote
	- name: Set up JDK 17
	uses: actions/setup-java@v4
	with:
	java-version: '17'
	distribution: 'temurin'
	cache: gradle
	- name: Grant execute permission for gradlew
	run: chmod +x gradlew
	- name: Check formatting with spotless
	run: ./gradlew spotlessCheck
	- name: Test musikr with Gradle
	run: ./gradlew musikr:testDebug

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