update references (#60)

#### 📖 Summary

- Replace all github refs with gitea url

#### 📑 Test Plan

> 💡 Select your test plan for the code changes.

- [x] Tested via Drone.io pipeline
- [ ] Custom test
- [ ] No test plan

##### Details / Justification

<!-- Add your test details or justification for missing tests here. -->

#### 📚 Additional Notes

<!-- A place for additional detail notes. -->

Co-authored-by: OCram85 <marco.blessing@googlemail.com>
Reviewed-on: OCram85/PSCredentialStore#60

.gitea/ISSUE_TEMPLATE/Enhancement.md

@@ -0,0 +1,24 @@
+----
+name: "Enhancement"
+about: "Wite about new features."
+title: ":flying_saucer: "
+labels:
+  - enhancement
+----
+<!--
+This issue template is used to describe whished features.
+-->
+
+#### :satellite: Suggestion
+
+
+
+#### :artificial_satellite: Implementation ideas
+
+
+
+#### :framed_picture: Mock-up Images
+
+
+
+#### :bookmark: Refs.