fix(traefik) Update traefik image to build with new Real-IP repo (#11856)

**Description**
Updates the traefik container image to the one with
https://github.com/jramsgz/traefik-real-ip baked in, as originally
intended in #11834.

⚒️ 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

**🧪 How Has This Been Tested?**
Image works correctly when manually updating the image from 21.0.2 on my
local system.

**📃 Notes:**
Apologies for not marking the original PR as Draft/DNM before sorting
this.

**✔️ Checklist:**

- [ ] ⚖️ My code follows the style guidelines of this project
- [ ] 👀 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

**➕ 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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charts/enterprise/traefik/Chart.yaml

@@ -23,7 +23,7 @@ sources:
   - https://github.com/traefik/traefik-helm-chart
   - https://traefik.io/
 type: application
-version: 21.0.2
+version: 21.0.3
 annotations:
   truecharts.org/catagories: |
     - network

charts/enterprise/traefik/values.yaml

@@ -1,6 +1,6 @@
 image:
   repository: tccr.io/truecharts/traefik
-  tag: 2.10.4@sha256:028687caa7680c6189c52a6dd28ffd17c3d0a747885ad83b3027fa74023a0fec
+  tag: 2.10.4@sha256:77766fb3eb739197d7e229bfa8afb3a4a740886e3effef474ca4c9efdf65e5ab
   pullPolicy: IfNotPresent
 manifestManager:
   enabled: true