fix(workflows): add workaround for hashFiles bug on macOS runners

- Implements workaround for GitHub Actions bug (actions/runner-images#13341)
- Uses static cache key 'static-v1' for macOS runners instead of hashFiles
- Adds conditional logic to prevent cache key generation issues
- Applies fix to both ffmpeg-release.yml and ffmpeg-test.yml workflow files

Author: flexiondotorg

.github/workflows/ffmpeg-release.yml

@@ -58,7 +58,9 @@ jobs:
           path: |
             ~/go/pkg/mod
             ~/.cache/go-build
-          key: ${{ runner.os }}-${{ runner.arch }}-go-${{ hashFiles('go.sum', 'go.mod') }}
+          # Workaround for GitHub Actions bug: https://github.com/actions/runner-images/issues/13341
+          # hashFiles() broken on macOS runners as of 2024-11-23, using static key temporarily
+          key: ${{ runner.os }}-${{ runner.arch }}-go-${{ matrix.os == 'darwin' && 'static-v1' || hashFiles('go.sum', 'go.mod') }}
           restore-keys: |
             ${{ runner.os }}-${{ runner.arch }}-go-
 
@@ -94,7 +96,9 @@ jobs:
         uses: actions/cache@v4
         with:
           path: .build/downloads
-          key: ${{ runner.os }}-${{ runner.arch }}-ffmpeg-downloads-${{ hashFiles('internal/builder/libraries.go') }}
+          # Workaround for GitHub Actions bug: https://github.com/actions/runner-images/issues/13341
+          # hashFiles() broken on macOS runners as of 2024-11-23, using static key temporarily
+          key: ${{ runner.os }}-${{ runner.arch }}-ffmpeg-downloads-${{ matrix.os == 'darwin' && 'static-v1' || hashFiles('internal/builder/libraries.go') }}
           restore-keys: |
             ${{ runner.os }}-${{ runner.arch }}-ffmpeg-downloads-
 
@@ -104,7 +108,9 @@ jobs:
           path: |
             .build/staging
             .build/build
-          key: ${{ runner.os }}-${{ runner.arch }}-ffmpeg-deps-${{ hashFiles('internal/builder/libraries.go', 'internal/builder/buildsystems.go') }}
+          # Workaround for GitHub Actions bug: https://github.com/actions/runner-images/issues/13341
+          # hashFiles() broken on macOS runners as of 2024-11-23, using static key temporarily
+          key: ${{ runner.os }}-${{ runner.arch }}-ffmpeg-deps-${{ matrix.os == 'darwin' && 'static-v1' || hashFiles('internal/builder/libraries.go', 'internal/builder/buildsystems.go') }}
           restore-keys: |
             ${{ runner.os }}-${{ runner.arch }}-ffmpeg-deps-
 

.github/workflows/ffmpeg-test.yml

@@ -49,7 +49,9 @@ jobs:
           path: |
             ~/go/pkg/mod
             ~/.cache/go-build
-          key: ${{ runner.os }}-${{ runner.arch }}-go-${{ hashFiles('go.sum', 'go.mod') }}
+          # Workaround for GitHub Actions bug: https://github.com/actions/runner-images/issues/13341
+          # hashFiles() broken on macOS runners as of 2024-11-23, using static key temporarily
+          key: ${{ runner.os }}-${{ runner.arch }}-go-${{ matrix.os == 'darwin' && 'static-v1' || hashFiles('go.sum', 'go.mod') }}
           restore-keys: |
             ${{ runner.os }}-${{ runner.arch }}-go-
 
@@ -85,7 +87,9 @@ jobs:
         uses: actions/cache@v4
         with:
           path: .build/downloads
-          key: ${{ runner.os }}-${{ runner.arch }}-ffmpeg-downloads-${{ hashFiles('internal/builder/libraries.go') }}
+          # Workaround for GitHub Actions bug: https://github.com/actions/runner-images/issues/13341
+          # hashFiles() broken on macOS runners as of 2024-11-23, using static key temporarily
+          key: ${{ runner.os }}-${{ runner.arch }}-ffmpeg-downloads-${{ matrix.os == 'darwin' && 'static-v1' || hashFiles('internal/builder/libraries.go') }}
           restore-keys: |
             ${{ runner.os }}-${{ runner.arch }}-ffmpeg-downloads-
 
@@ -95,7 +99,9 @@ jobs:
           path: |
             .build/staging
             .build/build
-          key: ${{ runner.os }}-${{ runner.arch }}-ffmpeg-deps-${{ hashFiles('internal/builder/libraries.go', 'internal/builder/buildsystems.go') }}
+          # Workaround for GitHub Actions bug: https://github.com/actions/runner-images/issues/13341
+          # hashFiles() broken on macOS runners as of 2024-11-23, using static key temporarily
+          key: ${{ runner.os }}-${{ runner.arch }}-ffmpeg-deps-${{ matrix.os == 'darwin' && 'static-v1' || hashFiles('internal/builder/libraries.go', 'internal/builder/buildsystems.go') }}
           restore-keys: |
             ${{ runner.os }}-${{ runner.arch }}-ffmpeg-deps-