调整持续集成，linux ci修改为centos7

.github/workflows/linux.yml

@@ -13,9 +13,6 @@ jobs:
     - name: 下载submodule源码
       run: mv -f .gitmodules_github .gitmodules && git submodule sync && git submodule update --init
 
-    - name: apt-get安装依赖库(非必选)
-      run: sudo apt-get update && sudo apt-get install -y cmake libssl-dev libsdl-dev libavcodec-dev libavutil-dev libswscale-dev libresample-dev libusrsctp-dev
-
     - name: 下载 SRTP
       uses: actions/checkout@v2
       with:
@@ -24,11 +21,34 @@ jobs:
         ref: v2.3.0
         path: 3rdpart/libsrtp
 
-    - name: 编译 SRTP
-      run: cd 3rdpart/libsrtp && ./configure --enable-openssl && make -j $(nproc) && sudo make install
-
-    - name: 编译
-      run: mkdir -p linux_build && cd linux_build && cmake .. -DCMAKE_BUILD_TYPE=Release -DENABLE_FFMPEG=true && make -j $(nproc)
+    - name: 启动 Docker 容器, 在Docker 容器中执行脚本
+      run: |
+        docker pull centos:7 
+        docker run -v $(pwd):/root -w /root --rm centos:7 sh -c "
+          set -x
+          yum install -y git wget gcc gcc-c++ make unzip ffmpeg-devel libavutil-devel libswscale-devel libresample-devel usrsctp-devel
+          
+          wget https://github.com/openssl/openssl/archive/refs/heads/OpenSSL_1_1_1-stable.zip
+          unzip OpenSSL_1_1_1-stable.zip
+          cd openssl-OpenSSL_1_1_1-stable
+          ./config no-shared --prefix=/root/release
+          make -j $(nproc)
+          make install
+          cd ..
+        
+          wget https://github.com/Kitware/CMake/releases/download/v3.29.5/cmake-3.29.5.tar.gz
+          tar -xvf cmake-3.29.5.tar.gz
+          cd cmake-3.29.5
+          OPENSSL_ROOT_DIR=/root/release ./configure
+          make -j $(nproc)
+          make install
+          cd ..
+        
+          cd 3rdpart/libsrtp && ./configure --enable-openssl  --with-openssl-dir=/root/release && make -j $(nproc) && make install
+          cd ../../
+        
+          mkdir -p linux_build && cd linux_build && cmake .. -DOPENSSL_ROOT_DIR=/root/release -DCMAKE_BUILD_TYPE=Release -DENABLE_FFMPEG=true && make -j $(nproc)
+        "
 
     - name: 设置环境变量
       run: |
@@ -43,10 +63,10 @@ jobs:
         name: ${{ github.workflow }}_${{ env.BRANCH }}_${{ env.DATE }}
         path: release/*
         if-no-files-found: error
-        retention-days: 1
+        retention-days: 90
 
     - name: issue评论
-      if: github.event_name != 'pull_request'
+      if: github.event_name != 'pull_request' && github.ref != 'refs/heads/feature/test'
       uses: actions/github-script@v7
       with:
         github-token: ${{ secrets.GITHUB_TOKEN }}
@@ -60,5 +80,5 @@ jobs:
               + '- git hash: ${{ github.sha }} \n' 
               + '- 编译日期: ${{ env.DATE }}\n' 
               + '- 打包ci名: ${{ github.workflow }}\n' 
-              + '- 说明: 本二进制在ubuntu-20.04(x64)上编译，请确保您的机器系统不低于此版本，并提前`sudo apt-get install -y libssl-dev libsdl-dev libavcodec-dev libavutil-dev libswscale-dev libresample-dev libusrsctp-dev`安装依赖项\n' 
+              + '- 说明: 本二进制在centos7(x64)上编译，请确保您的机器系统不低于此版本，并提前`sudo yum check-update && sudo yum install -y openssl-devel ffmpeg-devel libavutil-devel libswscale-devel libresample-devel usrsctp-devel`安装依赖项\n' 
           })