Bump app build and version number

[unified-ci-app]

Summary

Bump app build number to 512
Bump app version number to 2.15.0
Generated by the following Github Actions run: https://github.com/mattermost/delivery-platform/actions/runs/8326100582

Release Note

NONE

[mattermost-build]

Hello @unified-ci-app[bot],

Thanks for your pull request! A Core Committer will review your pull request soon. For code contributions, you can learn more about the review process here.

[mvitale1989]

@amyblais the best way to perform this version bump would actually be to run the script against the main branch, and then let the automated cherrypick create the PR against the release-2.15 branch.

(FYI opening against release-* branch can work as well technically, but we need to remove the milestone from the PR, and manually open another version bump PR against master; that's why i'd recommend closing this PR, and reopening it against the main branch)

[amyblais]

@mvitale1989 Thanks, do I run the job here again https://github.com/mattermost/delivery-platform/actions/workflows/mattermost-mobile-bump-build-pr.yml, but against the master branch?

[mvitale1989]

@mvitale1989 Thanks, do I run the job here again https://github.com/mattermost/delivery-platform/actions/workflows/mattermost-mobile-bump-build-pr.yml, but against the master branch?

Yes that's exactly right 👍 you can use the same exact parameters, but against master branch. Let me first close this PR and delete the source branch, and then that job may be run again.