fix: fix syntax errors (target version)

Fixed all lines which were syntax errors in the target version (only
multi-line f-strings).

src/jcloud_docsgen/utils.py

@@ -174,9 +174,8 @@ def assert_that_is_instance(
         else:
             exception_message_expected = "'" + class_or_tuple.__name__ + "'"
         raise TypeError(
-            f"expected {exception_message_expected}, got '{
-                type(obj).__name__
-            }'",
+            f'expected {exception_message_expected}'
+            f", got '{type(obj).__name__}'"
         )