style: remove trailing spaces from update_directory_md.yml

.github/workflows/update_directory_md.yml

@@ -13,17 +13,17 @@ jobs:
             from typing import Iterator
             URL_BASE = "https://github.com/TheAlgorithms/Ruby/blob/master"
             g_output = []
-            
+
             def good_filepaths(top_dir: str = ".") -> Iterator[str]:
                 for dirpath, dirnames, filenames in os.walk(top_dir):
                     dirnames[:] = [d for d in dirnames if d[0] not in "._"]
                     for filename in filenames:
                         if os.path.splitext(filename)[1].lower() == ".rb":
                             yield os.path.join(dirpath, filename).lstrip("./")
-                            
+
             def md_prefix(i):
                 return f"{i * '  '}*" if i else "\n##"
-                
+
             def print_path(old_path: str, new_path: str) -> str:
                 global g_output
                 old_parts = old_path.split(os.sep)
@@ -32,7 +32,7 @@ jobs:
                         if new_part:
                             g_output.append(f"{md_prefix(i)} {new_part.replace('_', ' ').title()}")
                 return new_path
-                
+
             def build_directory_md(top_dir: str = ".") -> str:
                 global g_output
                 old_path = ""
@@ -47,7 +47,7 @@ jobs:
                 return "\n".join(g_output)
             with open("DIRECTORY.md", "w") as out_file:
                 out_file.write(build_directory_md(".") + "\n")
-                
+
       - name: Update DIRECTORY.md
         run: |
           cat DIRECTORY.md