chore(deps): update container image xwiki to 16.5.0-postgres-tomcat@b7b2f6c by renovate (#24055)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| xwiki | digest | `c44a97e` -> `b7b2f6c` |

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This PR has been generated by [Renovate
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<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy40NDAuNiIsInVwZGF0ZWRJblZlciI6IjM3LjQ0MC42IiwidGFyZ2V0QnJhbmNoIjoibWFzdGVyIiwibGFiZWxzIjpbImF1dG9tZXJnZSIsInVwZGF0ZS9kb2NrZXIvZ2VuZXJhbC9ub24tbWFqb3IiXX0=-->

charts/stable/xwiki/Chart.yaml

@@ -33,4 +33,4 @@ sources:
   - https://github.com/xwiki/xwiki-docker
   - https://hub.docker.com/_/xwiki
 type: application
-version: 14.2.1
+version: 14.2.2

charts/stable/xwiki/values.yaml

@@ -1,6 +1,6 @@
 image:
   repository: xwiki
-  tag: 16.5.0-postgres-tomcat@sha256:c44a97eecdad55ad5766d1975d982c167b77d8efd64ad6ee3c2fb0cfd2cc223c
+  tag: 16.5.0-postgres-tomcat@sha256:b7b2f6cd706cec10a5e75f6f9c061cf8b713ceec0edde2774e6c685347423393
   pullPolicy: IfNotPresent
 service:
   main: