chore(deps): update container image tccr.io/truecharts/nextcloud-imaginary to v20230401@6a227d1 (#15790)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
|
[tccr.io/truecharts/nextcloud-imaginary](https://togithub.com/truecharts/containers)
| digest | `906a7a8` -> `6a227d1` |

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charts/stable/nextcloud/Chart.yaml

@@ -31,4 +31,4 @@ sources:
   - https://github.com/nextcloud/docker
   - https://github.com/nextcloud/helm
 type: application
-version: 22.2.14
+version: 22.2.15

charts/stable/nextcloud/values.yaml

@@ -9,7 +9,7 @@ nginxImage:
 imaginaryImage:
   repository: tccr.io/truecharts/nextcloud-imaginary
   pullPolicy: IfNotPresent
-  tag: v20230401@sha256:906a7a832f95f208bc1f3c09e31ea93902fb07048eaa83fdfc033e7b4cf957c1
+  tag: v20230401@sha256:6a227d1b0200d29f25028e07b8852f60e3d91a5814048933e70eccee749dc04c
 hpbImage:
   repository: tccr.io/truecharts/nextcloud-push-notify
   pullPolicy: IfNotPresent