Filter fatal exceptions from Task.FromException in async paths

Fatal exceptions (OOM, StackOverflow, ThreadAbort, NullReference,
AccessViolation) must not be wrapped in Task.FromException — they
should propagate synchronously. Add ADP.IsCatchableExceptionType
guards matching the existing pattern used elsewhere in SqlDataReader.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Author: cheenamalhotra

src/Microsoft.Data.SqlClient/src/Microsoft/Data/SqlClient/SqlBulkCopy.cs

@@ -1360,6 +1360,10 @@ private Task ReadFromRowSourceAsync(CancellationToken cts)
                 {
                     if (_isAsyncBulkCopy)
                     {
+                        if (!ADP.IsCatchableExceptionType(ex))
+                        {
+                            throw;
+                        }
                         return Task.FromException<bool>(ex);
                     }
                     else

src/Microsoft.Data.SqlClient/src/Microsoft/Data/SqlClient/SqlDataReader.cs

@@ -5476,7 +5476,7 @@ private Task<T> InvokeAsyncCall<T>(SqlDataReaderBaseAsyncCallContext<T> context)
                 {
                     task = context.Execute(null, context);
                 }
-                catch (Exception ex)
+                catch (Exception ex) when (ADP.IsCatchableExceptionType(ex))
                 {
                     task = Task.FromException<T>(ex);
                 }