cpp setup

.github/workflows/build&test@arcrunner.yml

@@ -18,12 +18,11 @@ jobs:
     runs-on: ${{ matrix.runner }}
 
     steps:
-    - name: Install
-      run: sudo apt update && sudo apt upgrade -y && sudo apt install -y git curl pkg-config libssl-dev
-    - name: Setup | Cpp
-      uses: rlalik/setup-cpp-compiler@master
-      with:
-        compiler: gcc-10
+    - name: Install 
+      run: |
+        sudo apt update && sudo apt upgrade -y && sudo apt install -y git curl pkg-config libssl-dev gcc-10 g++-10 \
+        sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-10 100 --slave /usr/bin/g++ g++ /usr/bin/g++-10 --slave /usr/bin/gcov gcov /usr/bin/gcov-10 \
+        sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-9 90 --slave /usr/bin/g++ g++ /usr/bin/g++-9 --slave /usr/bin/gcov gcov /usr/bin/gcov-9 \
     - name: Setup | Rust
       uses: ATiltedTree/setup-rust@v1
       with: