[BUG] Spring generator uses old Swagger dependency

Description

I'm using openapi-generator-maven-plugin 4.1.3 and the spring generator uses an old swagger dependency.

expected:

		<dependency>
			<groupId>io.swagger.core.v3</groupId>
			<artifactId>swagger-annotations</artifactId>
			<version>2.0.10</version>
		</dependency>

actual:

		<dependency>
			<groupId>io.swagger</groupId>
			<artifactId>swagger-annotations</artifactId>
			<version>1.5.23</version>
		</dependency>

And the generated code uses import io.swagger.annotations.*
instead of import io.swagger.v3.oas.annotations.*

Start from the Spring generator entry point and inspect where its Maven dependency and generated Swagger imports are defined. Compare the generated output with the expected io.swagger.core.v3 dependency and io.swagger.v3.oas.annotations imports, then run the relevant generator tests if available. Done means Spring output uses Swagger annotations 2.0.10 consistently.