fix(anonaddy) fix secret encoding for anonaddy (#12260)

**Description**
change encoding to b64enc for secret keys
⚒️ Fixes  # <!--(issue)-->

**⚙️ Type of change**

- [ ] ⚙️ Feature/App addition
- [X] 🪛 Bugfix
- [ ] ⚠️ Breaking change (fix or feature that would cause existing
functionality to not work as expected)
- [ ] 🔃 Refactor of current code

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**📃 Notes:**
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**✔️ Checklist:**

- [X] ⚖️ My code follows the style guidelines of this project
- [X] 👀 I have performed a self-review of my own code
- [ ] #️⃣ I have commented my code, particularly in hard-to-understand
areas
- [ ] 📄 I have made corresponding changes to the documentation
- [ ] ⚠️ My changes generate no new warnings
- [ ] 🧪 I have added tests to this description that prove my fix is
effective or that my feature works
- [X] ⬆️ I increased versions for any altered app according to semantic
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**➕ App addition**

If this PR is an app addition please make sure you have done the
following.

- [ ] 🪞 I have opened a PR on
[truecharts/containers](https://github.com/truecharts/containers) adding
the container to TrueCharts mirror repo.
- [ ] 🖼️ I have added an icon in the Chart's root directory called
`icon.png`

---

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---------

Signed-off-by: Xstar97TheNoob <9399967+xstar97@users.noreply.github.com>
Signed-off-by: Stavros Kois <47820033+stavros-k@users.noreply.github.com>
Co-authored-by: Stavros Kois <47820033+stavros-k@users.noreply.github.com>

charts/stable/anonaddy/Chart.yaml

@@ -26,7 +26,7 @@ name: anonaddy
 sources:
   - https://github.com/truecharts/charts/tree/master/charts/stable/anonaddy
   - https://github.com/anonaddy/docker
-version: 15.0.1
+version: 15.0.2
 annotations:
   truecharts.org/catagories: |
     - email

charts/stable/anonaddy/templates/_secrets.tpl

@@ -11,6 +11,9 @@
  {{- end }}
 enabled: true
 data:
-  APP_KEY: {{ $appKey }}
+  # Anonaddy requires APP_KEY to be in base 64 format presented in the container, so this b64enc here is intentional
+  # https://github.com/anonaddy/docker/blob/master/README.md#app
+  APP_KEY: {{ $appKey | b64enc }}
+  # Anonaddy requires ANONADDY_SECRET to be a long string
   ANONADDY_SECRET: {{ $secretKey }}
 {{- end -}}