fix: validate normalized string field values correctly

Signed-off-by: Abhijeet Saharan <abhijeetsaharan2236@gmail.com>

Author: Abhijeet2409

application/defs/cheatsheet_defs.py

@@ -78,4 +78,4 @@ def __post_init__(self):
                 raise ValueError(
                     "CheatsheetRecord: metadata keys and values must be strings, "
                     f"got {key!r}: {value!r}"
-                )
+                )

application/utils/external_project_parsers/parsers/cheatsheet_extractor.py

@@ -62,9 +62,7 @@ def _extract_summary(markdown: str) -> str:
         if body:
             return body
 
-    raise ValueError(
-        "_extract_summary: no summary could be extracted from markdown."
-    )
+    raise ValueError("_extract_summary: no summary could be extracted from markdown.")
 
 
 def extract_cheatsheet_record(
@@ -95,4 +93,4 @@ def extract_cheatsheet_record(
             "parser_version": PARSER_VERSION,
             "fallback_used": FALLBACK_USED,
         },
-    )
+    )