ci: add a comment for installing required linux packages, update the …

…system packages before running integration tests, running flutter doctor to ensure compatibility

.github/workflows/main.yml

@@ -74,8 +74,13 @@ jobs:
             fi
           done
 
+      # From https://docs.flutter.dev/get-started/install/linux/desktop#development-tools
       - name: 🐧 Install required Linux packages to run integration tests
-        run: sudo apt update -y && sudo apt-get install -y curl git unzip xz-utils zip libglu1-mesa && sudo apt-get install clang cmake git ninja-build pkg-config libgtk-3-dev liblzma-dev libstdc++-12-dev
+        run: sudo apt update -y && sudo apt-get upgrade -y && sudo apt-get install -y curl git unzip xz-utils zip libglu1-mesa && sudo apt-get install clang cmake git ninja-build pkg-config libgtk-3-dev liblzma-dev libstdc++-12-dev
+
+      # See https://docs.flutter.dev/get-started/install/linux/desktop#development-tools
+      - name: 🐧 Checking the package versions compatibility with Flutter
+        run: flutter doctor
 
       # TODO: Move integration tests step into a separate workflow with support for all platforms
       - name: 🧪 Run Flutter integration tests