pyproject.toml: Update version for pyshacl

Previously, we used version 0.26.0 of pyshacl.
This version however had a problem with typing,
namely the `py.typed` file was in the wrong
location (see [pyshacl#267]).

This has been fixed in this new release, therefore
we bump the version number in our dependency
declaration.

This also should fix our CI Pipeline.

[pyshacl#267]: RDFLib/pySHACL#267

pyproject.toml

@@ -46,7 +46,7 @@ dependencies = [
     "hypothesis~=6.13",
     "lxml-stubs~=0.5.1",
     "rdflib~=7.0.0",
-    "pyshacl~=0.26.0"
+    "pyshacl~=0.27.0"
 ]
 
 [project.optional-dependencies]