Bump keycloak.version from 22.0.5 to 26.1.3

Bumps `keycloak.version` from 22.0.5 to 26.1.3.

Updates `org.keycloak:keycloak-testsuite-utils` from 22.0.5 to 26.1.3

Updates `org.keycloak:keycloak-server-spi` from 22.0.5 to 26.1.3
- [Release notes](https://github.com/keycloak/keycloak/releases)
- [Commits](keycloak/keycloak@22.0.5...26.1.3)

Updates `org.keycloak:keycloak-server-spi-private` from 22.0.5 to 26.1.3
- [Release notes](https://github.com/keycloak/keycloak/releases)
- [Commits](keycloak/keycloak@22.0.5...26.1.3)

Updates `org.keycloak:keycloak-services` from 22.0.5 to 26.1.3
- [Release notes](https://github.com/keycloak/keycloak/releases)
- [Commits](keycloak/keycloak@22.0.5...26.1.3)

---
updated-dependencies:
- dependency-name: org.keycloak:keycloak-testsuite-utils
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: org.keycloak:keycloak-server-spi
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: org.keycloak:keycloak-server-spi-private
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: org.keycloak:keycloak-services
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

pom.xml

@@ -26,7 +26,7 @@
     <java.version>17</java.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <main.java.package>gr.cti.nts</main.java.package>
-    <keycloak.version>22.0.5</keycloak.version>
+    <keycloak.version>26.1.3</keycloak.version>
     <lombok.version>1.18.36</lombok.version>
     <auto-service.version>1.1.1</auto-service.version>
   </properties>