Adds a github workflow that updates dependabot prs

[AlexSCorey]

SUMMARY

We have a github workflow file that checks to see if all prs have 1 of a set of strings in them to automate release notes. Dependabot-created-prs do not have any of those strings, and the dependabot file cannot be configured for custom pr body. Ergo this PR. This workflow checks for workflows with labels ('dependencies' and 'component:ui') which are automatically added to dependabot prs and updates that body of those prs to add Bug, Docs Fix or other nominal change so it will pass that aformentioned workflow

ISSUE TYPE

• New or Enhanced Feature

COMPONENT NAME

• Other

AWX VERSION