message: workflows: Make CI machine configuration more specific
diff: @@ -11,7 +11,7 @@ on:
  jobs:
  build:
  - runs-on: ubuntu-latest
  + runs-on: ubuntu-20.04
  strategy:
  matrix:
  @@ -19,7 +19,7 @@ jobs:
  services:
  postgres:
  - image: postgres:latest
  + image: postgres:13
  env:
  POSTGRES_DB: indexer_tests
  POSTGRES_USER: testuser
  