[Validator] Fixed wrong translation keys/messages for Collection constraint. The error messages for a missing field and an unexpected field did not match the Contraint class
bug #11778 [Validator] Fixed wrong translations for Collection constraints (samicemalone)

This PR was merged into the 2.3 branch.

Discussion
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[Validator] Fixed wrong translations for Collection constraints

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #11630
| License       | MIT
| Doc PR        |

The error messages for a missing field and an unexpected field did not match the Constraint class.

Commits
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808de2b [Validator] Fixed wrong translation keys/messages for Collection constraint. The error messages for a missing field and an unexpected field did not match the Contraint class