chore(deps): bump com.nimbusds:oauth2-oidc-sdk in /resource_server

Bumps [com.nimbusds:oauth2-oidc-sdk](https://bitbucket.org/connect2id/oauth-2.0-sdk-with-openid-connect-extensions) from 8.28.1 to 11.18.
- [Changelog](https://bitbucket.org/connect2id/oauth-2.0-sdk-with-openid-connect-extensions/src/master/CHANGELOG.txt)
- [Commits](https://bitbucket.org/connect2id/oauth-2.0-sdk-with-openid-connect-extensions/branches/compare/11.18..8.28.1)

---
updated-dependencies:
- dependency-name: com.nimbusds:oauth2-oidc-sdk
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

resource_server/pom.xml

@@ -61,7 +61,7 @@
         <dependency>
             <groupId>com.nimbusds</groupId>
             <artifactId>oauth2-oidc-sdk</artifactId>
-            <version>8.28.1</version>
+            <version>11.18</version>
             <scope>runtime</scope>
         </dependency>