bump powershell completion tests on 3.14 to dj 5.2

Author: bckohan

.github/workflows/test.yml

@@ -671,10 +671,10 @@ jobs:
         python-version: ['3.9', '3.14']
         django-version:
           - '3.2' # LTS April 2024
-          - '5.0' # April 2025
+          - '5.2' # April 2025
         exclude:
           - python-version: '3.9'
-            django-version: '5.0'
+            django-version: '5.2'
           - python-version: '3.14'
             django-version: '3.2'
 
@@ -746,10 +746,10 @@ jobs:
         python-version: ['3.9', '3.14']
         django-version:
           - '3.2' # LTS April 2024
-          - '5.0' # April 2025
+          - '5.2' # April 2025
         exclude:
           - python-version: '3.9'
-            django-version: '5.0'
+            django-version: '5.2'
           - python-version: '3.14'
             django-version: '3.2'