ignore unkown errors for coverage

InvenTree/InvenTree/tasks.py

@@ -248,7 +248,7 @@ def update_exchange_rates():
         # Apps not yet loaded!
         logger.info("Could not perform 'update_exchange_rates' - App registry not ready")
         return
-    except:
+    except:  # pragma: no cover
         # Other error?
         return
 
@@ -257,7 +257,7 @@ def update_exchange_rates():
         backend = ExchangeBackend.objects.get(name='InvenTreeExchange')
     except ExchangeBackend.DoesNotExist:
         pass
-    except:
+    except:  # pragma: no cover
         # Some other error
         logger.warning("update_exchange_rates: Database not ready")
         return
@@ -274,7 +274,7 @@ def update_exchange_rates():
 
         # Remove any exchange rates which are not in the provided currencies
         Rate.objects.filter(backend="InvenTreeExchange").exclude(currency__in=currency_codes()).delete()
-    except Exception as e:
+    except Exception as e:  # pragma: no cover
         logger.error(f"Error updating exchange rates: {e}")