style: format code with Autopep8, Black, ClangFormat, dotnet-format, …

…Go fmt, Gofumpt, Google Java Format, isort, Ktlint, PHP CS Fixer, Prettier, RuboCop, Ruff Formatter, Rustfmt, Scalafmt, StandardJS, StandardRB, swift-format and Yapf

This commit fixes the style issues introduced in b33548e according to the output
from Autopep8, Black, ClangFormat, dotnet-format, Go fmt, Gofumpt, Google Java
Format, isort, Ktlint, PHP CS Fixer, Prettier, RuboCop, Ruff Formatter, Rustfmt,
Scalafmt, StandardJS, StandardRB, swift-format and Yapf.

Details: None

quantum-crypto-module/gen_keys.py

@@ -1,38 +1,39 @@
 # quantum-crypto-module/gen_keys.py
-import os
 import hashlib
+import os
+
+from cryptography.hazmat.backends import default_backend
 from cryptography.hazmat.primitives import serialization
 from cryptography.hazmat.primitives.asymmetric import rsa
-from cryptography.hazmat.backends import default_backend
+
 
 def generate_keys():
     # Generate RSA key pair
     key = rsa.generate_private_key(
-        public_exponent=65537,
-        key_size=4096,
-        backend=default_backend()
+        public_exponent=65537, key_size=4096, backend=default_backend()
     )
 
     # Serialize private key
     private_key_pem = key.private_bytes(
         encoding=serialization.Encoding.PEM,
         format=serialization.PrivateFormat.PKCS8,
-        encryption_algorithm=serialization.NoEncryption()
+        encryption_algorithm=serialization.NoEncryption(),
     )
 
     # Serialize public key
     public_key_pem = key.public_key().public_bytes(
         encoding=serialization.Encoding.OpenSSH,
-        format=serialization.PublicFormat.OpenSSH
+        format=serialization.PublicFormat.OpenSSH,
     )
 
     # Save keys to files
-    with open('private_key.pem', 'wb') as f:
+    with open("private_key.pem", "wb") as f:
         f.write(private_key_pem)
 
-    with open('public_key.pem', 'wb') as f:
+    with open("public_key.pem", "wb") as f:
         f.write(public_key_pem)
 
     return private_key_pem, public_key_pem
 
+
 generate_keys()