chore: tweaks to release workflow (#72)

* add reviewers
* use 'auto' label and title prefix
* link to release details in PR comment
* use a unique branch name to avoid conflicts

Author: mcdurdin

.github/workflows/deploy-release.yml

@@ -52,12 +52,12 @@ jobs:
             cd "$repo"
             if [ -f build.sh ]; then
               sed -i "s/^readonly BOOTSTRAP_VERSION=.*/readonly BOOTSTRAP_VERSION=${BOOTSTRAP_VERSION}/" build.sh
-              git checkout -b update-bootstrap-version
+              git checkout -b update-bootstrap-version-${BOOTSTRAP_VERSION}
               git add build.sh
               git commit -m "chore: update BOOTSTRAP_VERSION to ${BOOTSTRAP_VERSION}"
               git remote set-url --push origin "https://keyman-server:${GITHUB_TOKEN}@github.com/keymanapp/$repo.git"
-              git push -u origin update-bootstrap-version
-              gh pr create --title "chore: update BOOTSTRAP_VERSION to ${BOOTSTRAP_VERSION}" --body "This PR updates the BOOTSTRAP_VERSION in build.sh to ${BOOTSTRAP_VERSION}." --repo "keymanapp/${PWD##*/}"
+              git push -u origin update-bootstrap-version-${BOOTSTRAP_VERSION}
+              gh pr create --title "auto: update shared-sites version to ${BOOTSTRAP_VERSION}" --label auto --reviewer darcywong00,mcdurdin,ermshiperete --body "Update BOOTSTRAP_VERSION to [${BOOTSTRAP_VERSION}](https://github.com/keymanapp/shared-sites/releases/tag/${BOOTSTRAP_VERSION})." --repo "keymanapp/${PWD##*/}"
             fi
             cd ..
           done