chore(helm): update image ghcr.io/linuxserver/tvheadend digest to 697995d (#29483)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| ghcr.io/linuxserver/tvheadend | digest | `5da84d8` -> `697995d` |

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charts/stable/tvheadend/Chart.yaml

@@ -35,4 +35,4 @@ sources:
   - https://github.com/truecharts/charts/tree/master/charts/stable/tvheadend
   - https://github.com/tvheadend/tvheadend
 type: application
-version: 21.2.7
+version: 21.2.8

charts/stable/tvheadend/values.yaml

@@ -1,7 +1,7 @@
 image:
   repository: ghcr.io/linuxserver/tvheadend
   pullPolicy: IfNotPresent
-  tag: latest@sha256:5da84d8b5e16943b2654fbd6b84a60135f2c68182b66a25bc4e4fe322b7f9b8d
+  tag: latest@sha256:697995d58a2327fa75a5c68e1d12ec26af3d2415a6af1828a99002d0c2873ec3
 service:
   main:
     ports: