CI/BUG: Remove trim() function on comment-commands.yml

[KevsterAmp]

• closes CI/BUG: comment_commands.yml failing due to invalid trim()  #60396 (Replace xxxx with the GitHub issue number)

Since there are no trim or related split commands on github workflows, you'd have to use a shell to be able to trim it.
See: https://stackoverflow.com/questions/64049306/github-actions-how-to-trim-a-string-in-a-condition

  ...
  - name: Check if person has accepted and signed CLA
    shell: python
    run: |
      import sys

      def check_user_accepted_and_signed(text):
        """Some complex natural language processing will go here"""
      
      comment = '''${{ github.event.comment.body }}'''
      if not check_user_accepted_and_signed(comment):
        sys.exit(1)  # This will abort the job
  - name: Not accepted or signed
    if: ${{ failure() }}
    run: optionally do something if the check fails
  - name: Move on if the check passed
    run: ...

Which in my opinion would be a lot of work and extra compute time for a simple "strip" on comments. I suggest to revert it as original.

[mroeschke]

Thanks @KevsterAmp no worries with introducing the failure