Bump swagger-core.version from 2.2.20 to 2.2.21

Bumps `swagger-core.version` from 2.2.20 to 2.2.21.

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

Updates `io.swagger.core.v3:swagger-core` from 2.2.20 to 2.2.21
- [Release notes](https://github.com/swagger-api/swagger-core/releases)
- [Commits](swagger-api/swagger-core@v2.2.20...v2.2.21)

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

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

Author: dependabot[bot]

pom.xml

@@ -65,7 +65,7 @@
         <mockito.version>5.11.0</mockito.version>
 
         <slf4j.version>1.7.30</slf4j.version>
-        <swagger-core.version>2.2.20</swagger-core.version>
+        <swagger-core.version>2.2.21</swagger-core.version>
         <swagger-parser.version>2.1.6</swagger-parser.version>
         <snakeyaml.version>2.2</snakeyaml.version>
         <jacoco-maven-plugin.version>0.8.11</jacoco-maven-plugin.version>