Bump ipywidgets from 8.0.6 to 8.0.7 (#1452)

Author: dependabot[bot]

requirements_dev_optional.txt

@@ -3,7 +3,7 @@
 lmdb==1.4.1; sys_platform != 'win32'
 # optional library requirements for Jupyter
 ipytree==0.2.2
-ipywidgets==8.0.6
+ipywidgets==8.0.7
 # optional library requirements for services
 # don't let pyup change pinning for azure-storage-blob, need to pin to older
 # version to get compatibility with azure storage emulator on appveyor (FIXME)