[BUG][JAVA][KOTLIN] referencing a pattern makes the type to object/any

Bug Report Checklist

• Have you provided a full/minimal spec to reproduce the issue?
• Have you validated the input using an OpenAPI validator (example)?
• Have you tested with the latest master to confirm the issue still exists?
• Have you searched for related issues/PRs?
• What's the actual output vs expected output?
• [Optional] Sponsorship to speed up the bug fix or feature request (example)

Description

Referencing a pattern for a property or path parameter makes the type an Object/Any instead of String
Example of the kotlin spring generator. The property s is of type Any.

    @field:Valid
    @get:Pattern(regexp="^EXTID:[\\w\\-_]*$")
    @Schema(example = "null", required = true, description = "")
    @get:JsonProperty("s", required = true) val s: kotlin.Any,

openapi-generator version

6.6.0

OpenAPI declaration file content or url

Example schema:

{
	"schemas": {
		"example_pattern": {
			"pattern": "^example"
		},
		"example_object": {
			"type": "object",
			"properties": {
				"s": {
					"type": "string",
					"$ref": "#/components/schemas/example_pattern"
				}
			}
		}
	}
}

Generation Details

tested with java-jaxrs and kotlin spring

Start by reproducing the supplied schema with the java-jaxrs and kotlin-spring generators, focusing on the property or path-parameter type produced when a pattern schema is referenced. Trace how the referenced schema's pattern and string type are resolved, then verify that the generated property is String rather than Object or Any.