Update ci-ros-lint.yml

Author: sea-bass

.github/workflows/ci-ros-lint.yml

@@ -5,7 +5,7 @@ on:
 jobs:
   ament_lint:
     name: ament_${{ matrix.linter }}
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-20.04
     strategy:
       fail-fast: false
       matrix:
@@ -23,7 +23,7 @@ jobs:
 
   ament_lint_100:
     name: ament_${{ matrix.linter }}
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-20.04
     strategy:
       fail-fast: false
       matrix: