fix(golang): Add /config directory with ownership change (#1326)

Create /config directory and set ownership to apps user.

**Description**
<!--
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.
-->
⚒️ Fixes  # <!--(issue)-->

**⚙️ Type of change**

- [ ] 🧰 New container/image
- [ ] 🛠️ Update existing container/image
- [ ] 🐛 Bugfix (Dockerfile, scripts, chart values)
- [ ] 🔃 Refactor (no functional change)
- [ ] ⚠️ Breaking change (image tag, chart API change)

**🧪 How Has This Been Tested?**
<!--
Explain how you verified the container/image works.
Include steps to reproduce locally or in CI.
-->

- [ ] ✅ Built container locally
- [ ] ✅ Ran container tests (unit/integration)
- [ ] ✅ Verified image in staging environment
- [ ] ✅ Checked container logs for errors

**📃 Notes**
<!-- Add any additional information like environment variables, optional
args, or migration notes -->

**✔️ Checklist:**

- [ ] ⚖️ Changes follow the style guidelines of this project
- [ ] 👀 Self-review completed
- [ ] ✍️ Dockerfile and scripts are clear and accurate
- [ ] 🔗 Internal references (base images) are correct
- [ ] 🧪 Test instructions included
- [ ] 🏷️ The PR title follows the convention:
  - `feat(page):`
  - `fix(content):`
  - `docs(site):`
  - `chore(site):`

_Please don't blindly check all the boxes. Read them and only check
those that apply.
Those checkboxes are there for the reviewer to see what is this all
about and
the status of this PR with a quick glance._

---------

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

Author: alfi0812

apps/golang/Dockerfile

@@ -1,7 +1,7 @@
 
 
 
-FROM ghcr.io/trueforge-org/ubuntu:24.4.0@sha256:5348eb7725294e8090c15b7b495e517f82f4b31497d3bb9de71bbe37476e7454 as build
+FROM ghcr.io/trueforge-org/ubuntu:24.4.0@sha256:5348eb7725294e8090c15b7b495e517f82f4b31497d3bb9de71bbe37476e7454 AS build
 
 ENV PATH=/usr/local/go/bin:$PATH
 
@@ -40,6 +40,9 @@ ENV PATH=/usr/local/go/bin:$GOPATH/bin:$PATH
 
 COPY --from=build --link /target/ /
 
+# Fix /config permission issues
+RUN install -d -o apps -g apps /config
+
 USER apps
 
 WORKDIR /config