Merge pull request #12 from AikidoSec/parser_utf_8_bom_fix

Change encoding to utf-8-sig

Author: willem-delbare

checkov/dockerfile/parser.py

@@ -15,7 +15,7 @@
 
 
 def parse(filename: str | Path) -> tuple[dict[str, list[_Instruction]], list[str]]:
-    with open(filename) as dockerfile:
+    with open(filename, "r", encoding="utf-8-sig") as dockerfile:
         dfp = DockerfileParser(fileobj=dockerfile)
         return dfp_group_by_instructions(dfp)