Chore: Updates runner image for s3 files deployment.

Author: davidrkupton

.github/workflows/deploy_to_s3.yml

@@ -30,7 +30,7 @@ env:
 jobs:
   Deploy:
     # installed software: https://github.com/actions/runner-images/blob/main/images/linux/Ubuntu2004-Readme.md
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     defaults:
       run:
         shell: bash