fix: app names with non-alphanumeric characters in position 63 break syncs (issue #18237)

[RobinsonZ]

Fixes #18237. Fixes #10110.

Checklist:

• [x] Either (a) I've created an enhancement proposal and discussed it with the community, (b) this is a bug fix, or (c) this does not need to be in the release notes.
• [x] The title of the PR states what changed and the related issues number (used for the release note).
• [x] The title of the PR conforms to the Toolchain Guide
• [x] I've included "Closes [ISSUE #]" or "Fixes [ISSUE #]" in the description to automatically close the associated issue.
• [x] I've updated both the CLI and UI to expose my feature, or I plan to submit a second PR with them.
• [ ] Does this PR require documentation updates?
• [ ] I've updated documentation as required by this PR.
• [x] I have signed off all my commits as required by DCO
• [x] I have written unit and/or e2e tests for my change. PRs without these are unlikely to be merged.
• [x] My build is green (troubleshooting builds).
• [ ] My new feature complies with the feature status guidelines.
• [x] I have added a brief description of why this PR is necessary and/or what this PR solves.
• [ ] Optional. My organization is added to USERS.md.
• [ ] Optional. For bug fixes, I've indicated what older releases this fix should be cherry-picked into (this may or may not happen depending on risk/complexity).

[jannfis]

This seems trying to fix the same issue as https://github.com/argoproj/argo-cd/pull/17560

[RobinsonZ]

Seems so. That PR looks stale but I will defer to maintainers as to which version you would like to go with. This is actively biting us, and workarounds are tricky for a variety of reasons, so whatever gets the issue fixed is fine by me.

[RobinsonZ]

@jannfis Updated per your feedback. Let me know if any other changes are needed.

[RobinsonZ]

Can this be cherry-picked into 2.11?

[pasha-codefresh]

/cherry-pick release-2.11