[Github Automation] Update Execute command

[Sh0g0-1758]

Fixes: #64803

PR SUMMARY: Removed unsupported branch command and changed Regex to accept /cherry-pick: command.

[Sh0g0-1758]

Taken account of these strings :

"/cherry-pick: Hola mundo"
"/branch: owner/repo/branch"
"/cherry-pick Hola mundo"
"/branch owner/repo/branch"
"/branch : owner/repo/branch"
"/cherry-pick : Hola mundo"

[llvmbot]

Taken account of these strings :

"/cherry-pick: Hola mundo"
"/branch: owner/repo/branch"
"/cherry-pick Hola mundo"
"/branch owner/repo/branch"
"/branch : owner/repo/branch"
"/cherry-pick : Hola mundo"

Error: Command failed due to missing milestone.

[AaronBallman]

Thank you for this! I think it looks good, but I leave it to @tstellar to make the final call.

[Sh0g0-1758]

ping

[Sh0g0-1758]

ping @AaronBallman @nikic

[Sh0g0-1758]

This is a rather trivial issue. If this is not relevant anymore, I will close the PR and you can mark the issue as resolved. Though I do think that adding regex support for cherry-pick seems prudent.

[tstellar]

This is a rather trivial issue. If this is not relevant anymore, I will close the PR and you can mark the issue as resolved. Though I do think that adding regex support for cherry-pick seems prudent.

I think this is fine, but maybe remove the comment about the obsolete /branch command in another patch.

[Sh0g0-1758]

I think we can do that in this PR itself. Removing the branch command and adding regex support for the chery-pick command ?
I can change the PR header and provide appropriate description for landing the changes.

[tstellar]

OK, that's fine.

[Sh0g0-1758]

I have made some changes in the comments, and since the command will always be cherry-pick now, removed the if statement also. I don't think this can particularly cause a build fail, might be safe to land this without waiting for CI build workflow. Updated the PR Summary and header as well.

[Sh0g0-1758]

Hm.. Some Flang test is failing. I know that the build process on Windows is a little buggy. I leave the rest to your discretion. @tstellar

[Sh0g0-1758]

@tstellar, should I pass an empty commit to retrigger the checks?

[github-actions]

✅ With the latest revision this PR passed the Python code formatter.