minor #18302 [Form] Fix `FormBuilderInterface` docblocks (HeahDude)
minor #18302 [Form] Fix `FormBuilderInterface` docblocks (HeahDude)

This PR was merged into the 3.0 branch.

Discussion
----------

[Form] Fix `FormBuilderInterface` docblocks

| Q             | A
| ------------- | ---
| Branch?       | 3.0
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #18301
| License       | MIT
| Doc PR        | -

Commits
-------

67458d8 [Form] Fix `FormBuilderInterface` docblocks

symfony/Form