update packages to address security alert

- https://github.com/w3c/dpv/security/dependabot/2

code/requirements.txt

@@ -1,18 +1,19 @@
 html5lib==1.1
-importlib_metadata==7.1.0
+importlib_metadata==8.0.0
 isodate==0.6.1
 Jinja2==3.1.4
+Markdown==3.6
 MarkupSafe==2.1.5
 owlrl==6.0.2
-packaging==24.0
+packaging==24.1
 prettytable==3.10.0
 Pygments==2.18.0
 pyparsing==3.1.2
-pyshacl==0.25.0
+pyshacl==0.26.0
 rdflib==7.0.0
 rdflib-jsonld==0.6.2
 six==1.16.0
 wcwidth==0.2.13
 webencodings==0.5.1
 xlsx2csv==0.8.2
-zipp==3.18.1
+zipp==3.19.2