ci: removed noisy workflow (#173)

.github/workflows/pr-description-update.yml

-name: "Update Pull Request Description with conventional commits"
-on:
-  pull_request:
-    types:
-      - opened
-      - reopened
-      - edited
-      - synchronize
-
-# cancel redundant builds
-concurrency:
-  group: "update-pr-${{ github.head_ref }}"
-  cancel-in-progress: true
-
-jobs:
-  update_pr:
-    if: contains(github.head_ref, 'release-please') != true
-    runs-on: ubuntu-latest
-    steps:
-      - uses: 8BitJonny/gh-get-current-pr@2.2.0
-        with:
-          sha: ${{ github.event.pull_request.head.sha }}
-        id: PR
-      - uses: actions/checkout@v3
-        with:
-          fetch-depth: 0
-      - run: |
-          pr_body='${{ steps.PR.outputs.pr_body }}'
-          delimiter="Changelog picked up from commits here:"
-          cleaned_body="${pr_body%${delimiter}*}"
-          cleaned_body_without_trailing_space="$(python .github/remove_trailing_space.py "${cleaned_body}")"
-          conventional_commits="$(git log --pretty=format:"%B"  origin/main..HEAD | grep -Pio '^(build|chore|ci|docs|feat|fix|perf|refactor|revert|style|test|¯\\_\(ツ\)_\/¯)(\(\w+\)?((?=:\s)|(?=!:\s)))?(!)?(:\s.*)?(\n\n.*)?$' | grep ':' || true)"
-          echo "CONVENTIONAL_COMMITS<<EOF" >> $GITHUB_ENV
-          echo "${cleaned_body_without_trailing_space}" >> ${GITHUB_ENV}
-          if [ ${#conventional_commits} -gt 0 ]; then
-            echo "" >> ${GITHUB_ENV}
-            echo "${delimiter}" >> ${GITHUB_ENV}
-            echo "" >> ${GITHUB_ENV}
-            echo "${conventional_commits}" >> $GITHUB_ENV
-          fi
-          echo 'EOF'>> $GITHUB_ENV
-      - uses: tzkhan/pr-update-action@v2
-        with:
-          repo-token: "${{ secrets.GITHUB_TOKEN }}"
-          # added this though it isn't used
-          base-branch-regex: '[a-z\d-_.\\/]+'
-          body-template: |
-            ${{ env.CONVENTIONAL_COMMITS }}
-          body-update-action: "replace"
-          body-uppercase-base-match: false