feat: Cache Homebrew files

Author: l0b0

.github/workflows/test.yml

@@ -104,6 +104,13 @@ jobs:
         run: sudo apt-get --assume-yes install libgdal-dev
         if: startsWith(runner.os, 'Linux')
 
+      - name: Cache Homebrew
+        uses: actions/cache@v3.2.3
+        with:
+          path: ~/Library/Caches/Homebrew
+          key: ${{ runner.os }}-homebrew-${{ secrets.CACHE_SEED }}
+        if: startsWith(runner.os, 'macOS')
+
       - name: Install GDAL on MacOS
         run: brew install gdal
         if: startsWith(runner.os, 'macOS')