👷 ci: remove test-library job from build workflow

Remove automated testing and code analysis steps from the
multi-platform build workflow to speed up releases. Tests
can be run separately in dedicated CI workflows.

Changes:
- Remove test-library job (flutter test & flutter analyze)
- Remove prepare job's dependency on test-library

Author: iota9star

.github/workflows/build-all-platforms.yml

@@ -35,36 +35,11 @@ env:
   FLUTTER_CHANNEL: stable
 
 jobs:
-  #####################################
-  # Test library first
-  #####################################
-  test-library:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      - name: Setup Flutter
-        uses: subosito/flutter-action@v2
-        with:
-          channel: ${{ env.FLUTTER_CHANNEL }}
-          cache: true
-
-      - name: Get dependencies
-        run: flutter pub get
-
-      - name: Run tests
-        run: flutter test
-
-      - name: Analyze code
-        run: flutter analyze
-
   #####################################
   # Prepare release info
   #####################################
   prepare:
     runs-on: ubuntu-latest
-    needs: test-library
     outputs:
       release_tag: ${{ steps.tag.outputs.tag }}
       release_name: ${{ steps.tag.outputs.name }}