infra: add pr_title_check workflow

[AbeCoull]

Issue #, if available:

Description of changes:
This is to check the title follows the contributing guidelines Braket has laid out.

Testing done:

Merge Checklist

Put an x in the boxes that apply. You can also fill these out after creating the PR. If you're unsure about any of them, don't hesitate to ask. We're here to help! This is simply a reminder of what we are going to look for before merging your pull request.

General

• I have read the CONTRIBUTING doc
• I used the commit message format described in CONTRIBUTING
• I have updated any necessary documentation, including READMEs and API docs (if appropriate)

Tests

• I have added tests that prove my fix is effective or that my feature works (if appropriate)
• I have checked that my tests are not configured for a specific region or account (if appropriate)

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (90f9395) to head (ad7ae96).
Report is 36 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #991   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          135       135           
  Lines         8949      8949           
  Branches      2011      2011           
=========================================
  Hits          8949      8949           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[speller26]

Is there a way to enforce this for the commit name rather than the PR? Since that's what actually matters for release purposes.

[AbeCoull]

Is there a way to enforce this for the commit name rather than the PR? Since that's what actually matters for release purposes.

Had an offline discussion with @speller26 regarding this. Under the squash merge in Github settings, the commit message was moved from default to use PR title.