[更新GitHub Actions缓存并清理FFmpeg代码]: 升级actions/cache到v5版本并移除废弃的FFmpeg API调用，同时更新vcpkg基线

-**.github/actions/install-dependencies/action.yml**: 将`actions/cache`从v4升级至v5版本，以获得更好的性能和稳定性
-**src/ffmpeg/formatcontext.cpp**: 移除`av_format_inject_global_side_data`函数调用，该API在较新FFmpeg版本中已不再需要
-**vcpkg.json**: 更新`builtin-baseline`至新提交哈希`2fa7118fb2ce0c27ab73e08ab1991f4cb67af880`，同步最新第三方库依赖

Author: RealChuan

.github/actions/install-dependencies/action.yml

@@ -25,7 +25,7 @@ runs:
         vcpkg x-update-baseline
 
     - name: Cache vcpkg
-      uses: actions/cache@v4
+      uses: actions/cache@v5
       with:
         path: ${{ github.workspace }}/build/vcpkg_installed
         key: ${{ runner.os }}-vcpkg-installed-${{ github.sha }}

src/ffmpeg/formatcontext.cpp

@@ -158,7 +158,6 @@ auto FormatContext::openFilePath(const QString &filepath, OpenMode mode) -> bool
             SET_ERROR_CODE(ret);
             return false;
         }
-        av_format_inject_global_side_data(d_ptr->formatCtx);
         d_ptr->isOpen = true;
     } break;
     case WriteOnly: {

vcpkg.json

@@ -18,5 +18,5 @@
     "libass",
     "tl-expected"
   ],
-  "builtin-baseline": "e7d7451462697d77ef319ddf2da8ff7320a82662"
+  "builtin-baseline": "2fa7118fb2ce0c27ab73e08ab1991f4cb67af880"
 }