uwsgi: change state to latest for virtualenvs

In all other cases we prefer idempotence in Ansible roles. But here,
this is actually the safe way to go. This change keeps the environment
up-to-date with changes in the application, but is also idempotent in
the case of stable software which froze its requirements to specific
versions as recommended. Running any updates using this role also
ensures that e.g. database migrations are run properly.

uwsgi-python/tasks/app.yml

@@ -194,6 +194,7 @@
     requirements: "{{ app_path }}/{{ app_requirements_file }}"
     virtualenv: "{{ app_venv }}"
     virtualenv_python: "python{{ app_python_version }}"
+    state: latest
   notify:
     - "restart uwsgi instance {{ app.instance }}"
   when:
@@ -210,6 +211,7 @@
     name: "git+{{ app_git_url }}@{{ app_git_version }}{{ app_git_pip_query|default('') }}"
     virtualenv: "{{ app_venv }}"
     virtualenv_python: "python{{ app_python_version }}"
+    state: latest
   notify:
     - "restart uwsgi instance {{ app.instance }}"
   when:

uwsgi-python/tasks/apps/pretix.yml

@@ -42,6 +42,7 @@
     name: "{{ pretix_plugins }}"
     virtualenv: "{{ app_venv }}"
     virtualenv_python: "python{{ app_python_version }}"
+    state: latest
   notify:
     - "restart uwsgi instance {{ app.instance }}"