We don't need the firefox snap...

.github/workflows/flutter_build.yml

@@ -37,6 +37,7 @@ jobs:
           echo "$GITHUB_WORKSPACE/.flutter/bin/" >> "$GITHUB_PATH"
       - run: |
           sudo apt update -y
+          sudo apt-get autopurge snapd
           sudo apt upgrade -y
           sudo apt dist-upgrade -y
           sudo apt install -y ninja-build libgtk-3-dev libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev