Install ffmpeg via package managers in UI CI

Replace the third-party setup action with native package-manager commands for FFmpeg installation in UI test workflows. Updated macOS, Ubuntu and Windows workflows to use `brew install ffmpeg`, `sudo apt-get install -y ffmpeg`, and `choco install ffmpeg -y` respectively. This reduces reliance on an external action (and its rate limits) and simplifies CI environment setup. Files changed: .github/workflows/test-ui-mac.yml, .github/workflows/test-ui-ubuntu.yml, .github/workflows/test-ui-windows.yml.

Author: cx-atish-jadhav

.github/workflows/test-ui-mac.yml

@@ -38,11 +38,7 @@ jobs:
           distribution: zulu
           java-version: 11
       - name: Setup FFmpeg
-        uses: FedericoCarboni/setup-ffmpeg@583042d32dd1cabb8bd09df03bde06080da5c87c # v2
-        with:
-          # Not strictly necessary, but it may prevent rate limit
-          # errors especially on GitHub-hosted macos machines.
-          token: ${{ secrets.GITHUB_TOKEN }}
+        run: brew install ffmpeg
       # Perform clean before testing
       - name: Clean
         run: ./gradlew clean

.github/workflows/test-ui-ubuntu.yml

@@ -37,11 +37,7 @@ jobs:
           distribution: zulu
           java-version: 11
       - name: Setup FFmpeg
-        uses: FedericoCarboni/setup-ffmpeg@583042d32dd1cabb8bd09df03bde06080da5c87c # v2
-        with:
-          # Not strictly necessary, but it may prevent rate limit
-          # errors especially on GitHub-hosted macos machines.
-          token: ${{ secrets.GITHUB_TOKEN }}
+        run: sudo apt-get update && sudo apt-get install -y ffmpeg
       # Perform clean before testing
       - name: Clean
         run: ./gradlew clean

.github/workflows/test-ui-windows.yml

@@ -37,11 +37,7 @@ jobs:
           distribution: zulu
           java-version: 11
       - name: Setup FFmpeg
-        uses: FedericoCarboni/setup-ffmpeg@583042d32dd1cabb8bd09df03bde06080da5c87c # v2
-        with:
-          # Not strictly necessary, but it may prevent rate limit
-          # errors especially on GitHub-hosted macos machines.
-          token: ${{ secrets.GITHUB_TOKEN }}
+        run: choco install ffmpeg -y
       # Perform clean before testing
       - name: Clean
         run: ./gradlew clean