Upgrade python to 3.11, viur-core to v3.5.1 and viur-cli to `…

…v1.0.16` (#110)

- Upgrade python
- Upgrade viur-core
- Upgrade viur-cli
- Update Pipfile & Pipfile.lock
- Update deploy/requirements.txt
- Upgrade project.json
  - Vi
- Adjust core changes
  - decorators
  - imports, ...

* Upgrade python to `3.11`

* Update `Pipfile` (dependencies) and improve `project.json`

* Improve `main.py`

* Adjust `.editorconfig`

* Update `requirements.txt`

* Update to `viur-core==3.5.1`

* Update viur-cli to `v1.0.16`

* Update admin

Currently the `viur-cli` enforces the "vi" member ...

* Use fixed admin version for relase and CI/CD

.editorconfig

@@ -34,3 +34,6 @@ ij_python_optimize_imports_join_from_imports_with_same_source = true
 ij_python_optimize_imports_sort_by_type_first = true
 ij_python_optimize_imports_sort_imports = true
 ij_python_optimize_imports_sort_names_in_from_imports = true
+
+[project.json]
+insert_final_newline = false

Pipfile

@@ -4,11 +4,11 @@ verify_ssl = true
 name = "pypi"
 
 [packages]
-viur-core = "==3.4.4"
+viur-core = "==3.5.1"
 
 [dev-packages]
-viur-cli = "==1.0.6"
+viur-cli = "~=1.0"
 pycodestyle = "==2.10.0"
 
 [requires]
-python_version = "3.10"
+python_version = "3.11"