ci: improve workflow triggers (#2017)

- Unchain commit-lint and CI
  - Even if a commit does not meet the CI path filter, it still needs to lint the commit message.
- Unchain PR filter and CI
  - The CI workflow needs to be triggered when the commits in a pull request are modified.
- Allow manual publishing
  - Sometimes `semantic-release` will error out due to commit messages referencing discussions, but this does not affect the final RubyGems/GitHub Release. In such cases, manual triggering of the publish process is needed to complete the remaining publishing steps.

.github/workflows/cd.yml

@@ -2,13 +2,12 @@ name: CD
 
 on:
   push:
-    branches:
-      - production
-    tags-ignore:
-      - "**"
+    branches: [production]
+    tags-ignore: ["**"]
 
 jobs:
   release:
+    if: ${{ ! startsWith(github.event.head_commit.message, 'chore(release)') }}
     permissions:
       contents: write
       issues: write