Fix Pipeline

Author: akashgk

.github/workflows/dart_test_analyze_format.yml

@@ -4,7 +4,7 @@ jobs:
   dart_test_analyze_format:
     runs-on: ubuntu-latest
     container:
-      image: google/dart:2.18
+      image: google/dart
     steps:
       - uses: actions/checkout@v2
       - run: (echo 'deb http://deb.debian.org/debian buster main contrib non-free') > /etc/apt/sources.list.d/buster.list