[REGRESSION] Fix for indentation issue in docs utils. (- WIP PR #273 -)

Changes in file docs/utils.py:
  - use only tabs for indentation

Author: reactive-firewall

docs/utils.py

@@ -72,18 +72,16 @@ def _validate_git_ref(ref: str) -> str:
 GIT_REF_PATTERN = r'^[a-zA-Z0-9][a-zA-Z0-9_\-./]*$'
 
 def _validate_git_ref(ref: str) -> str:
-    """
-    Validate if the provided string is a valid Git reference.
-
-    Git reference naming rules:
-    - Must start with an alphanumeric character
-    - Can contain alphanumeric characters, underscore, hyphen, forward slash, and dot
-    - Cannot contain consecutive dots (..)
-    ...
-    """
-    if not re.match(GIT_REF_PATTERN, ref) or '..' in ref:
-        raise ValueError(f"Invalid Git reference: {ref}")
-    return ref
+	"""
+	Validate if the provided string is a valid Git reference.
+
+	Git reference naming rules:
+		- Must start with an alphanumeric character
+		- Can contain alphanumeric characters, underscore, hyphen, forward slash, and dot
+		- Cannot contain consecutive dots (..)
+		...
+	"""
+	if not re.match(GIT_REF_PATTERN, ref) or ".." in ref:
 		raise ValueError(f"Invalid Git reference: {ref}")
 	return ref