CI: add empty line in no-bool-in-generic to avoid black complaining (pandas-dev#54855)

* black will complain if there is no additional empty line

* also update the test

Author: Charlie-XIAO

scripts/no_bool_in_generic.py

@@ -65,7 +65,7 @@ def replace_bool_with_bool_t(to_replace, content: str) -> str:
                     + replaced_line[col_offset + 4 :]
                 )
         new_lines.append(replaced_line)
-    return "\n".join(new_lines)
+    return "\n".join(new_lines) + "\n"
 
 
 def check_for_bool_in_generic(content: str) -> tuple[bool, str]:

scripts/tests/test_no_bool_in_generic.py

@@ -1,7 +1,7 @@
 from scripts.no_bool_in_generic import check_for_bool_in_generic
 
-BAD_FILE = "def foo(a: bool) -> bool:\n    return bool(0)"
-GOOD_FILE = "def foo(a: bool_t) -> bool_t:\n    return bool(0)"
+BAD_FILE = "def foo(a: bool) -> bool:\n    return bool(0)\n"
+GOOD_FILE = "def foo(a: bool_t) -> bool_t:\n    return bool(0)\n"
 
 
 def test_bad_file_with_replace():