Bump microprofile-openapi-api from 3.0 to 3.1 in /keycloak-theme (#3876)

Bumps [microprofile-openapi-api](https://github.com/eclipse/microprofile-open-api) from 3.0 to 3.1.
- [Release notes](https://github.com/eclipse/microprofile-open-api/releases)
- [Commits](https://github.com/eclipse/microprofile-open-api/compare/3.0...3.1)

---
updated-dependencies:
- dependency-name: org.eclipse.microprofile.openapi:microprofile-openapi-api
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

keycloak-theme/pom.xml

@@ -87,7 +87,7 @@
         <dependency>
             <groupId>org.eclipse.microprofile.openapi</groupId>
             <artifactId>microprofile-openapi-api</artifactId>
-            <version>3.0</version>
+            <version>3.1</version>
         </dependency>
         <dependency>
             <groupId>org.testng</groupId>