fix: Set git_repository_url using set_fact to avoid recursive loop

- Use set_fact task to set git_repository_url instead of vars section
- This prevents recursive loop when variable is referenced in tasks

deployment/ansible/playbooks/deploy-application-code.yml

@@ -7,7 +7,6 @@
   vars:
     application_code_dest: "/home/deploy/michaelschiemer/current"
     git_repository_url_default: "https://git.michaelschiemer.de/michael/michaelschiemer.git"
-    git_repository_url: "{{ git_repository_url | default(git_repository_url_default) }}"
     # Determine branch based on environment
     git_branch: >-
       {%- if deployment_environment == 'staging' -%}
@@ -20,6 +19,10 @@
     deployment_environment: "{{ deployment_environment | default('production') }}"
 
   tasks:
+    - name: Set git_repository_url if not provided
+      set_fact:
+        git_repository_url: "{{ git_repository_url | default(git_repository_url_default) }}"
+
     - name: Ensure Git is installed
       ansible.builtin.apt:
         name: git