chore(deps): update container image tccr.io/tccr/nextcloud-fpm to v@721ac2c by renovate (#26653)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
|
[tccr.io/tccr/nextcloud-fpm](https://redirect.github.com/truecharts/containers)
| digest | `575cad4` -> `721ac2c` |

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charts/premium/nextcloud/Chart.yaml

@@ -49,4 +49,4 @@ sources:
   - https://hub.docker.com/r/collabora/code
   - https://hub.docker.com/r/nginxinc/nginx-unprivileged
 type: application
-version: 31.5.16
+version: 31.5.17

charts/premium/nextcloud/values.yaml

@@ -1,7 +1,7 @@
 image:
   repository: tccr.io/tccr/nextcloud-fpm
   pullPolicy: IfNotPresent
-  tag: v29.0.6@sha256:575cad49b6b8073e6b1ffe5bcbcc4ef093f2f157623b1206ba8d17ffbd3f6b1a
+  tag: v29.0.6@sha256:721ac2cb2bb11be102174ebea4f2ad11886990a81ebe90deaee2afa705b82076
 nginxImage:
   repository: nginxinc/nginx-unprivileged
   pullPolicy: IfNotPresent