fix: handle class overrides for retry polices correctly

Previous implementation didn't work as intended because there was still
override in init. Current implementation instead of playing with
guessing separates default and instance setttings. Also update test
cases to handle this scenario correctly

tests/ahriman/core/http/test_sync_http_client.py

@@ -49,14 +49,18 @@ def test_retry_policy() -> None:
     """
     must set retry policy
     """
-    SyncHttpClient.retry = SyncHttpClient.retry_policy(1, 2.0)
-    AUR.retry = AUR.retry_policy(3, 4.0)
+    SyncHttpClient.DEFAULT_MAX_RETRIES = 1
+    SyncHttpClient.DEFAULT_RETRY_BACKOFF = 2.0
+    AUR.DEFAULT_MAX_RETRIES = 3
+    AUR.DEFAULT_RETRY_BACKOFF = 4.0
 
-    assert SyncHttpClient.retry.connect == 1
-    assert SyncHttpClient.retry.backoff_factor == 2.0
+    client = SyncHttpClient()
+    assert client.retry.connect == 1
+    assert client.retry.backoff_factor == 2.0
 
-    assert AUR.retry.connect == 3
-    assert AUR.retry.backoff_factor == 4.0
+    aur = AUR()
+    assert aur.retry.connect == 3
+    assert aur.retry.backoff_factor == 4.0
 
 
 def test_exception_response_text() -> None:

tests/ahriman/core/repository/test_repository.py

@@ -31,8 +31,9 @@ def test_set_globals(configuration: Configuration) -> None:
     configuration.set_option("aur", "max_retries", "10")
 
     Repository._set_globals(configuration)
-    assert AUR.timeout == 42
-    assert AUR.retry.connect == 10
+    aur = AUR()
+    assert aur.timeout == 42
+    assert aur.retry.connect == 10
 
 
 def test_set_context(configuration: Configuration, database: SQLite, mocker: MockerFixture) -> None: