Update GitHub Actions workflow for macOS builds

- Remove unnecessary tesseract-lang package from dependencies
- Add cmake_ocr_hardsubx job to test OCR and hardsubx builds
- Include ffmpeg in dependencies for hardsubx support

Author: prateekmedia

.github/workflows/build_mac.yml

@@ -74,6 +74,22 @@ jobs:
       working-directory: build
     - name: Display version information
       run: ./build/ccextractor --version
+  cmake_ocr_hardsubx:
+    runs-on: macos-latest
+    steps:
+    - uses: actions/checkout@v4
+    - name: Install dependencies
+      run: brew install pkg-config autoconf automake libtool tesseract leptonica gpac ffmpeg
+    - name: cmake
+      run: |
+        mkdir build && cd build
+        cmake -DWITH_OCR=ON -DWITH_HARDSUBX=ON ../src
+    - name: build
+      run: |
+        make -j$(nproc)
+      working-directory: build
+    - name: Display version information
+      run: ./build/ccextractor --version
   build_rust:
     runs-on: macos-latest
     steps: