Stop wrapping OperationCancellationException with DbUpdateException

Fixes #15074

Author: roji

src/EFCore.Relational/Update/AffectedCountModificationCommandBatch.cs

@@ -84,7 +84,7 @@ protected override void Consume(RelationalDataReader reader)
                     "Expected " + expectedResultSetCount + " result sets, got " + actualResultSetCount);
 #endif
             }
-            catch (Exception ex) when (!(ex is DbUpdateException))
+            catch (Exception ex) when (ex is not DbUpdateException and not OperationCanceledException)
             {
                 throw new DbUpdateException(
                     RelationalStrings.UpdateStoreException,
@@ -150,7 +150,7 @@ protected override async Task ConsumeAsync(
                     "Expected " + expectedResultSetCount + " result sets, got " + actualResultSetCount);
 #endif
             }
-            catch (Exception ex) when (!(ex is DbUpdateException))
+            catch (Exception ex) when (ex is not DbUpdateException and not OperationCanceledException)
             {
                 throw new DbUpdateException(
                     RelationalStrings.UpdateStoreException,

src/EFCore.Relational/Update/ReaderModificationCommandBatch.cs

@@ -252,11 +252,7 @@ public override void Execute(IRelationalConnection connection)
                         Dependencies.Logger, CommandSource.SaveChanges));
                 Consume(dataReader);
             }
-            catch (DbUpdateException)
-            {
-                throw;
-            }
-            catch (Exception ex)
+            catch (Exception ex) when (ex is not DbUpdateException and not OperationCanceledException)
             {
                 throw new DbUpdateException(
                     RelationalStrings.UpdateStoreException,
@@ -293,11 +289,7 @@ public override async Task ExecuteAsync(
                     cancellationToken).ConfigureAwait(false);
                 await ConsumeAsync(dataReader, cancellationToken).ConfigureAwait(false);
             }
-            catch (DbUpdateException)
-            {
-                throw;
-            }
-            catch (Exception ex)
+            catch (Exception ex) when (ex is not DbUpdateException and not OperationCanceledException)
             {
                 throw new DbUpdateException(
                     RelationalStrings.UpdateStoreException,