fix(mealie): The mealie's DB Variables are not conditionnal (#35962)

make postgres variables conditional

**Description**
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Please include a summary of the change and which issue is fixed. Please
also include relevant motivation and context. List any dependencies that
are required for this change.
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⚒️ 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
- [ ] 📜 Documentation Changes

**🧪 How Has This Been Tested?**
I copied the chart and used it to deploy my version of mealie (in argocd
with helmfile plugin)

**📃 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 changes to the documentation
- [x] 🧪 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
versioning
- [X] I made sure the title starts with `feat(chart-name):`,
`fix(chart-name):`, `chore(chart-name):`, `docs(chart-name):` or
`fix(docs):`

**➕ App addition**

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

- [ ] 🖼️ I have added an icon in the Chart's root directory called
`icon.png`

---

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---------

Signed-off-by: PyRowMan <6388129+PyRowMan@users.noreply.github.com>
Signed-off-by: Alfred Göppel <43101280+alfi0812@users.noreply.github.com>
Co-authored-by: Alfred Göppel <43101280+alfi0812@users.noreply.github.com>

charts/stable/mealie/Chart.yaml

@@ -35,5 +35,5 @@ sources:
   - https://github.com/mealie-recipes/mealie
   - https://github.com/truecharts/charts/tree/master/charts/stable/mealie
 type: application
-version: 24.9.0
+version: 24.9.1
 

charts/stable/mealie/templates/_secrets.tpl

@@ -28,12 +28,14 @@ api:
   data:
     API_PORT: {{ .Values.service.main.ports.main.port | quote }}
     {{/* Database */}}
+  {{- if .Values.cnpg.main.enabled }}
     DB_ENGINE: "postgres"
     POSTGRES_PORT: "5432"
     POSTGRES_USER: {{ .Values.cnpg.main.user }}
     POSTGRES_PASSWORD: {{ .Values.cnpg.main.creds.password | trimAll "\"" }}
     POSTGRES_DB: {{ .Values.cnpg.main.database }}
     POSTGRES_SERVER: {{ .Values.cnpg.main.creds.host }}
+  {{- end }}
     {{/* User Defined */}}
     {{/* General */}}
     ALLOW_SIGNUP: {{ $api.general.allow_signup | quote }}

charts/stable/mealie/values.yaml

@@ -102,7 +102,6 @@ cnpg:
     user: mealie
     database: mealie
 
-
 ingress:
   main:
     integrations: