Bump io.swagger.core.v3:swagger-models from 2.2.20 to 2.2.21

Bumps io.swagger.core.v3:swagger-models from 2.2.20 to 2.2.21.

---
updated-dependencies:
- dependency-name: io.swagger.core.v3:swagger-models
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pom.xml

@@ -837,7 +837,7 @@
 						<dependency>
 							<groupId>io.swagger.core.v3</groupId>
 							<artifactId>swagger-models</artifactId>
-							<version>2.2.20</version>
+							<version>2.2.21</version>
 						</dependency>
 					</dependencies>
 				</plugin>