Added similar issues bot

[craigloewen-msft]

Summary of the Pull Request

Creates a new GitHub action that makes a bot that will automatically comment on new issues letting them know about similarly titled issues using AI. Will look like this:

Detailed Description of the Pull Request / Additional comments

The bot code is open sourced here.

Validation Steps Performed

Validated on other repos. You can manually validate queries like so:
https://gitgudissues.azurewebsites.net/api/getsimilarissues/microsoft/microsoft-ui-xaml/window%20caption%20brushes%20not%20working

[riverar]

Hi I'm an AI powered bot that finds similar issues based off the issue title.

Please view the issues below to see if they solve your problem, and if the issue describes your problem please consider closing this one and thumbs upping the other issue to help us prioritize it. Thank you!

The bot response indicates prioritization occurs via thumbs up, but the team has not indicated they are prioritizing community issues in that manner. Is this a commitment to start doing so or is this just boilerplate text that needs to be revised?

[craigloewen-msft]

@riverar this is boilerplate text that is used just for this bot.

[riverar]

Sounds good. I expect to see changes to the YAML to reflect that!

    steps:
      - name: Add comment
        run: gh issue comment "$NUMBER" --repo "$REPO" --body "$BODY"
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          NUMBER: ${{ github.event.issue.number }}
          REPO: ${{ github.repository }}
-         BODY: ${{ needs.getsimilarissues.outputs.message }}

[craigloewen-msft]

@riverar it's been added here: https://github.com/craigloewen-msft/GitGudSimilarIssues/blob/31ca2bdeece539a74f42fb0a9e4c25c71bf3627a/action.yml#L20

@Redth seems like merging is blocked despite approval? Please let me know if there's anything else you need from me to help merge this. THank you!

[riverar]

@craigloewen-msft Right and like mentioned above, the text is wrong. There's no thumbs-based voting here. So this PR needs to reflect alternate text. (Telling folks to perform an action that has no bearing on prioritization is confusing and a waste of their time.)

[craigloewen-msft]

@riverar modified the comment body to edit out that part.

[riverar]

Looks good to me!

[bpulliam]

/azp run

[azure-pipelines]

Azure Pipelines failed to run 1 pipeline(s).

[bpulliam]

Separate issue opened for broken links #9159