[TypeDeclaration] Skip type-guarded trait methods in StrictArrayParamDimFetchRector

[TomasVotruba]

StrictArrayParamDimFetchRector added an array param type to trait methods even when the trait was listed in withTypeGuardedClasses().

Root cause: the rule only checked hasParentClassMethod(), never isTypeGuardedClass(), so the guard did not apply.

• Add isTypeGuardedClass() bail-out to StrictArrayParamDimFetchRector
• The guard already resolves trait reflections correctly (ClassReflection::is() matches the trait by name, traits are never final), so no change to ParentClassMethodTypeOverrideGuard was needed
• Cover with a guarded-trait skip fixture in the TypeGuardedClasses suite