Merge pull request #1368 from bgilbert/deprecations

workflows: update actions to current major versions

.github/workflows/checks.yml

@@ -13,6 +13,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
       - name: Verify meeting-people.txt is sorted
         run: awk '!/^$/ {if (name) print} /^exit 0$/ { name = 1 }' meeting-people.txt | sort -c