chore(deps): update container image linuxserver/calibre-web to version-0.6.21@7648a8a by renovate (#19717)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
|
[linuxserver/calibre-web](https://togithub.com/linuxserver/docker-calibre-web/packages)
([source](https://togithub.com/linuxserver/docker-calibre-web)) | digest
| `b89ff20` -> `7648a8a` |

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This PR has been generated by [Renovate
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<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy4yNjcuMSIsInVwZGF0ZWRJblZlciI6IjM3LjI2Ny4xIiwidGFyZ2V0QnJhbmNoIjoibWFzdGVyIn0=-->

charts/stable/calibre-web/Chart.yaml

@@ -24,7 +24,7 @@ keywords:
   - calibre-web
   - calibre
   - ebook
-kubeVersion: ">=1.24.0-0"
+kubeVersion: '>=1.24.0-0'
 maintainers:
   - name: TrueCharts
     email: info@truecharts.org
@@ -35,4 +35,4 @@ sources:
   - https://github.com/truecharts/charts/tree/master/charts/stable/calibre-web
   - https://hub.docker.com/r/linuxserver/calibre-web
 type: application
-version: 18.7.3
+version: 18.7.4

charts/stable/calibre-web/values.yaml

@@ -1,7 +1,7 @@
 image:
   repository: linuxserver/calibre-web
   pullPolicy: IfNotPresent
-  tag: version-0.6.21@sha256:b89ff20a37cf2bf5ca62a77ba7adc35e2182ca4161315f6a1bd0934c438ac0f3
+  tag: version-0.6.21@sha256:7648a8ad6dff32c7f4feed1db016b2309ba25d1b3edf6da968a1975527c0dd58
 securityContext:
   container:
     readOnlyRootFilesystem: false