chore(helm): update image ghcr.io/linuxserver/tvheadend digest to e7761fa (#28376)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| ghcr.io/linuxserver/tvheadend | digest | `7e7dc62` -> `e7761fa` |

Add the preset `:preserveSemverRanges` to your config if you don't want
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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: 21.2.2
+version: 21.2.3

charts/stable/tvheadend/values.yaml

@@ -1,7 +1,7 @@
 image:
   repository: ghcr.io/linuxserver/tvheadend
   pullPolicy: IfNotPresent
-  tag: latest@sha256:7e7dc62359f53da7e699124a96c0e396a6a8f732819bc6d70ac92754bbbb0963
+  tag: latest@sha256:e7761fa74abe764a77805ffd0ccf9bae10101ef42090bde993f612d2d32d7909
 service:
   main:
     ports: