build: bump ipykernel from 7.1.0 to 7.2.0 in /doc in the docs-deps group (#160)

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Author: dependabot[bot]

doc/requirements.txt

@@ -19,7 +19,7 @@ plotly==6.5.2
 pythreejs==2.4.2
 pillow==12.1.0
 ipyvtklink==0.2.3
-ipykernel==7.1.0
+ipykernel==7.2.0
 pyvista[jupyter]==0.45.3
 trame-vtk!=2.8.16
 vtk==9.4.2