assume any file >1MB is a binary file

contrib/scripts/sensitive_strings.py

@@ -109,8 +109,6 @@ def _is_binary_file(self, file_path: str, file_name_ext: str):
         ext = ext.lower()
         if ext == ".ipynb":
             is_binary_file = True
-        elif ext == ".h5":
-            is_binary_file = True
         elif self._is_img_ext(ext):
             if ext in self._text_file_extensions:
                 is_binary_file = False
@@ -120,6 +118,11 @@ def _is_binary_file(self, file_path: str, file_name_ext: str):
                 is_binary_file = False
             else:
                 is_binary_file = True
+        elif ft.file_size(ft.join(file_path, file_name_ext)) > 1e6:
+            # assume any file > 1MB is a binary file, in order to prevent
+            # sensitive_strings from taking hours to check these files
+            # needlessly
+            is_binary_file = True
         if not is_binary_file:
             # attempt to parse the file as a text file
             try: