Update dependency soupsieve to v2.4

Author: renovate[bot]

requirements.txt

@@ -19,7 +19,7 @@ rdflib==5.0.0
 rdflib-jsonld==0.5.0
 requests==2.24.0
 six==1.15.0
-soupsieve==2.0.1
+soupsieve==2.4
 urllib3==1.25.10
 w3lib==1.22.0
 wcwidth==0.2.5