Prefer a known runner version

Even if it's every 2 years, using `latest` is
akin to using `main` for a branch reference

We want to pin the runner version we're
using

.github/workflows/erlang.yml

@@ -6,7 +6,7 @@ jobs:
 
  build_and_test:
 
- runs-on: ubuntu-latest
+ runs-on: ubuntu-22.04
 
  name: OTP ${{matrix.otp}}
  strategy:
@@ -33,7 +33,7 @@ jobs:
  release:
  if: github.ref == 'refs/heads/master' && startsWith(github.event.head_commit.message, 'no-release:') == false
  needs: build_and_test
- runs-on: ubuntu-latest
+ runs-on: ubuntu-22.04
  steps:
  - name: Bump version and push tag
  id: tag_version