CI: Disable running swift-png tests due to slowness

Author: marcprux

.github/workflows/test-action.yml

@@ -50,20 +50,6 @@ jobs:
           swift-version: ${{ matrix.swift-version }}
           run-tests: ${{ matrix.os != 'macos-15' }} # no tests on macOS ARM
 
-      - name: Checkout tayloraswift/swift-png
-        uses: actions/checkout@v4
-        with:
-          repository: tayloraswift/swift-png
-          path: tayloraswift/swift-png
-      - name: Test tayloraswift/swift-png
-        uses: ./swift-android-action/
-        with:
-          package-path: tayloraswift/swift-png
-          swift-version: ${{ matrix.swift-version }}
-          build-tests: ${{ matrix.swift-version != '6.0' }} # no Testing in 6.0
-          run-tests: ${{ matrix.os != 'macos-15' }} # no tests on macOS ARM
-          copy-files: Sources Tests
-
   toolchain-setup:
     runs-on: ${{ matrix.os }}
     strategy: