chore(pull-requests): enforce conventional commits (#29438)

Issue number: N/A

---------

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## What is the current behavior?
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Framework has a structure when it comes to PR titles. However, there
aren't any reinforcements to it unless a reviewer checks it.

## What is the new behavior?
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this PR. -->

- Added a GitHub action that will validate the PR title. It checks that
there is a valid type, checks that it has a scope, and that the subject
doesn't start with a uppercase character.

## Does this introduce a breaking change?

- [ ] Yes
- [x] No

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## Other information

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screenshots of how the component looks before and after the change. -->

Create a branch from this one to test it out.

.github/workflows/conventional-commit.yml

@@ -0,0 +1,26 @@
+name: PR Conventional Commit Validation
+
+on:
+  pull_request:
+    types: [opened, synchronize, reopened, edited]
+
+jobs:
+  validate-pr-title:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Validate PR title
+        uses:  amannn/action-semantic-pull-request@v5
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          # Configure that a scope must always be provided.
+          requireScope: true
+          # Configure additional validation for the subject based on a regex.
+          # This example ensures the subject doesn't start with an uppercase character.
+          subjectPattern: ^(?![A-Z]).+$
+          # If `subjectPattern` is configured, you can use this property to 
+          # override the default error message that is shown when the pattern 
+          # doesn't match. The variables `subject` and `title` can be used 
+          # within the message.
+          subjectPatternError: |
+            The subject "{subject}" found in the pull request title "{title}" didn't match the configured pattern. Please ensure that the subject doesn't start with an uppercase character.