chore: Update pull_request_template.md

[saradhis]

Update the Optional. My organization is added to the README to the USERS.md

Checklist:

• Either (a) I've created an enhancement proposal and discussed it with the community, (b) this is a bug fix, or (c) this is a chore.
• The title of the PR is (a) conventional, (b) states what changed, and (c) suffixes the related issues number. E.g. "fix(controller): Updates such and such. Fixes #1234".
• I have written unit and/or e2e tests for my change. PRs without these are unlike to be merged.
• Optional. I've added My organization is added to USERS.md.
• I've signed the CLA and required builds are green.

[simster7]

Re-ran the CI