fix: log RQ mark_request_as_handled and reclaim_request errors at exception level

Errors in `mark_request_as_handled` and `reclaim_request` in both the
single and shared request queue clients were logged at DEBUG level,
making API failures (network timeouts, auth errors, rate limits)
effectively invisible. Upgrade to `logger.exception` so these errors
are visible and include full tracebacks.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: vdusek

src/apify/storage_clients/_apify/_request_queue_shared_client.py

@@ -236,7 +236,7 @@ async def mark_request_as_handled(self, request: Request) -> ProcessedRequest |
                 hydrated_request=request,
             )
         except Exception as exc:
-            logger.debug(f'Error marking request {request.unique_key} as handled: {exc!s}')
+            logger.exception(f'Error marking request {request.unique_key} as handled: {exc!s}')
             return None
         else:
             return processed_request
@@ -280,7 +280,7 @@ async def reclaim_request(
                     self._should_check_for_forefront_requests = True
 
             except Exception as exc:
-                logger.debug(f'Error reclaiming request {request.unique_key}: {exc!s}')
+                logger.exception(f'Error reclaiming request {request.unique_key}: {exc!s}')
                 return None
             else:
                 return processed_request

src/apify/storage_clients/_apify/_request_queue_single_client.py

@@ -221,7 +221,7 @@ async def mark_request_as_handled(self, request: Request) -> ProcessedRequest |
             self._requests_in_progress.discard(request_id)
 
         except Exception as exc:
-            logger.debug(f'Error marking request {request.unique_key} as handled: {exc!s}')
+            logger.exception(f'Error marking request {request.unique_key} as handled: {exc!s}')
             return None
         else:
             return processed_request
@@ -264,7 +264,7 @@ async def reclaim_request(
                 self.metadata.pending_request_count += 1
 
         except Exception as exc:
-            logger.debug(f'Error reclaiming request {request.unique_key}: {exc!s}')
+            logger.exception(f'Error reclaiming request {request.unique_key}: {exc!s}')
             return None
         else:
             return processed_request