version：github.com/pb33f/libopenapi-validator v0.1.0

When using parameter validation, I encountered an issue where validation errors for earlier string-type fields in the parameters are being overwritten by the results of later field validations.

Upon reviewing the source code, I noticed that in the formatJsonSchemaValidationError method, the validationErrors object is reinitialized each time, which causes the validation errors in ValidateQueryParamsWithPathItem to be overwritten consistently.

I believe this could potentially be a bug.

The code I have questions about is located in the query_parameters.go file at line 121.

case helpers.String:
	validationErrors = v.validateSimpleParam(sch, ef, ef, params[p])

And I think the correct logic is that:

case helpers.String:
	validationErrors = append(validationErrors, v.validateSimpleParam(sch, ef, ef, params[p])...)