cli[patch]: unicode issue (#14672)

Some operating systems compile template, resulting in unicode decode
errors

libs/cli/langchain_cli/utils/find_replace.py

@@ -14,7 +14,14 @@ def find_and_replace(source: str, replacements: Dict[str, str]) -> str:
 
 
 def replace_file(source: Path, replacements: Dict[str, str]) -> None:
-    source.write_text(find_and_replace(source.read_text(), replacements))
+    try:
+        content = source.read_text()
+    except UnicodeDecodeError:
+        # binary file
+        return
+    new_content = find_and_replace(content, replacements)
+    if new_content != content:
+        source.write_text(new_content)
 
 
 def replace_glob(parent: Path, glob: str, replacements: Dict[str, str]) -> None: