fix(speedtest-tracker): Add additional ENV as config options are depreciated (#21767)

**Description**
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⚒️ Add additional ENV as config options are depreciated.

**⚙️ 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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**✔️ 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
versioning
- [x] I made sure the title starts with `feat(chart-name):`,
`fix(chart-name):` or `chore(chart-name):`

**➕ 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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charts/stable/speedtest-tracker/Chart.yaml

@@ -42,4 +42,4 @@ sources:
   - https://github.com/truecharts/charts/tree/master/charts/stable/speedtest-tracker
   - https://ghcr.io/linuxserver/speedtest-tracker
 type: application
-version: 2.1.0
+version: 2.1.1

charts/stable/speedtest-tracker/questions.yaml

@@ -27,6 +27,16 @@ questions:
                                         schema:
                                           type: string
                                           default: ""
+                                      - variable: PUBLIC_DASHBOARD
+                                        label: "Enables the public dashboard for guest (unauthenticated) users"
+                                        schema:
+                                          type: boolean
+                                          default: false
+                                      - variable: APP_NAME
+                                        label: "Used to define the application's name in the dashboard and in notifications"
+                                        schema:
+                                          type: string
+                                          default: "Speedtest Tracker"
                                       - variable: mail
                                         label: Show Mail Server Settings
                                         schema:

charts/stable/speedtest-tracker/values.yaml

@@ -93,3 +93,5 @@ workload:
                 expandObjectName: false
                 name: '{{ printf "%s-%s" .Release.Name "rediscreds" }}'
                 key: url
+            PUBLIC_DASHBOARD: true
+            APP_NAME: "Speedtest Tracker"