url_extract_path should return NULL if URI is malformed

[mbasmanova]

Bug description

In Presto, url_extract_path returns NULL if URL is malformed, url_decode throws.

Velox currently throws in both functions. Need to fix to match Presto.

presto:di>  select url_extract_path('https://www.ucu.edu.uy/agenda/evento/%%UCUrlCompartir%%');
 _col0
-------
 NULL
(1 row)

presto:di> select url_decode('https://www.ucu.edu.uy/agenda/evento/%%UCUrlCompartir%%');
Query 20231013_105704_33253_divi2 failed: URLDecoder: Illegal hex characters in escape (%) pattern - Error at index 0 in: "%U"

CC: @zacw7 @amitkdutta @aditi-pandit @kgpai

System information

n/a

Relevant logs

No response

[kgpai]

One more thing currently :

presto:tiny> select URL_EXTRACT_PATH('www.facebook.com '), URL_EXTRACT_PATH('foo'), URL_EXTRACT_PATH('https://www.ucu.edu.uy/agenda/evento/%%UCUrlCompartir%%');
 _col0 | _col1 | _col2 
-------+-------+-------
 NULL  | foo   | NULL  

However running above on Velox gives NULL | NULL | Exception..
Key thing seems to be presto java uses java.net.uri (https://docs.oracle.com/javase/7/docs/api/java/net/URI.html) and there 'foo' matches their implementation ([scheme:]scheme-specific-part[#fragment]) whereas it doesnt pass our implementation (https://github.com/facebookincubator/velox/blob/main/velox/functions/prestosql/URLFunctions.h#L32) .