build(deps-dev): bump zircote/swagger-php from 6.13.0 to 6.14.0 - #4806

Redundant cast to `(string)`: the expression already has this type. >This expression already has type `string`. Casting a value to a type it already possesses has no effect. Help: Remove the redundant `(string)` cast.

Redundant cast to `(string)`: the expression already has this type. >This expression already has type `string('')`. Casting a value to a type it already possesses has no effect. Help: Remove the redundant `(string)` cast.