bug symfony#53203 [Intl] [Emoji] Fix emoji files (remove wrong characters / add missing data) (smnandre)

This PR was squashed before being merged into the 6.4 branch.

Discussion
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[Intl] [Emoji] Fix emoji files (remove wrong characters / add missing data)

| Q             | A
| ------------- | ---
| Branch?       | 6.4
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Issues        | Fix symfony#53116
| License       | MIT

Fix two things
* unwanted characters (`↑↑↑`) instead of expected translations
* merging between child and parent locales

Also adapted the code to maintain a shared / reproductible order in the generated files.

Commits
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e9fcff5 [Intl] [Emoji] Fix emoji files (remove wrong characters / add missing data)

Author: nicolas-grekas