chore(helm): update image xwiki digest to 99c212f (#29487)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| xwiki | digest | `a6913ac` -> `99c212f` |

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charts/stable/xwiki/Chart.yaml

@@ -33,4 +33,4 @@ sources:
   - https://github.com/xwiki/xwiki-docker
   - https://hub.docker.com/_/xwiki
 type: application
-version: 14.7.2
+version: 14.7.3

charts/stable/xwiki/values.yaml

@@ -1,6 +1,6 @@
 image:
   repository: xwiki
-  tag: 16.9.0-postgres-tomcat@sha256:a6913acd4847322677cec16145d93f7c8692aa2453ef7098a68a8406b965fdc6
+  tag: 16.9.0-postgres-tomcat@sha256:99c212fafe3c24f621521fbcc2c073e85f9b9fa01db052698a52007b0cfcac1e
   pullPolicy: IfNotPresent
 service:
   main: