Bump org.alfresco:alfresco-repository from 23.3.0.15 to 23.3.0.21

Bumps [org.alfresco:alfresco-repository](https://github.com/Alfresco/alfresco-community-repo) from 23.3.0.15 to 23.3.0.21.
- [Commits](Alfresco/alfresco-community-repo@23.3.0.15...23.3.0.21)

---
updated-dependencies:
- dependency-name: org.alfresco:alfresco-repository
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

alfresco-totp-authenticator-platform/pom.xml

@@ -86,7 +86,7 @@
         <dependency>
             <groupId>org.alfresco</groupId>
             <artifactId>alfresco-repository</artifactId>
-            <version>23.3.0.15</version>
+            <version>23.3.0.21</version>
             <scope>provided</scope>
         </dependency>
         <dependency>