fix failing test in sec form 13f fetcher (#7171)

Author: deeleeramone

openbb_platform/providers/sec/openbb_sec/utils/parse_13f.py

@@ -187,7 +187,7 @@ async def parse_13f_hr(filing: str):
         data.loc[:, "putCall"] = data["putCall"].fillna("--")
 
     # Add the period ending so that the filing is identified when multiple are requested.
-    data["period_ending"] = to_datetime(period_ending, yearfirst=False).date()
+    data.loc[:, "period_ending"] = to_datetime(period_ending, yearfirst=False).date()
     df = DataFrame(data)
     # Aggregate the data because there are multiple entries for each security and we need the totals.
     # We break it down by CUSIP, security type, and option type.
@@ -220,8 +220,8 @@ async def parse_13f_hr(filing: str):
         if col in df.columns and all(df[col] == 0):
             df.drop(columns=col, inplace=True)
 
-    total_value = df["value"].sum()
-    df["weight"] = round(df["value"] / total_value, 6)
+    total_value = df.value.sum()
+    df.loc[:, "weight"] = round(df.value.astype(float) / total_value, 6)
 
     return (
         df.reset_index()