bug #22280 [DI] Fix the xml schema (GuilhemN)
bug #22280 [DI] Fix the xml schema (GuilhemN)

This PR was merged into the 2.7 branch.

Discussion
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[DI] Fix the xml schema

| Q             | A
| ------------- | ---
| Branch?       | 2.7
| Bug fix?      | yes
| New feature?  | no <!-- don't forget updating src/**/CHANGELOG.md files -->
| BC breaks?    | no
| Deprecations? | no <!-- don't forget updating UPGRADE-*.md files -->
| Tests pass?   | yes
| Fixed tickets |
| License       | MIT
| Doc PR        |

Commits
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f2ef1eecef [DI] Fix the xml schema

symfony/dependency-injection,symfony/DependencyInjection