update to latest RDFLib and update requirements.txt to remove reliance on unsafe dependencies

Author: nicholascar

requirements.txt

@@ -1,6 +1,22 @@
-rdflib>=6.1.0
-requests~=2.24.0
-argparse~=1.4.0
-pylode
-setuptools~=65.5.1
-prompt_toolkit
+anyio==4.8.0
+certifi==2025.1.31
+chardet==3.0.4
+dominate==2.9.1
+h11==0.14.0
+html5lib==1.1
+httpcore==1.0.7
+httpx==0.28.1
+idna==2.10
+Markdown==3.7
+prompt_toolkit==3.0.50
+pylode==3.2.1
+pyparsing==3.2.1
+rdflib==7.1.3
+requests==2.24.0
+setuptools==65.5.1
+six==1.17.0
+sniffio==1.3.1
+typing_extensions==4.12.2
+urllib3==1.25.11
+wcwidth==0.2.13
+webencodings==0.5.1