Merge pull request #692 from bashtage/snyk-fix-e9db315cbbfcfd2c63b7f8536adb8543

[Snyk] Security upgrade fonttools from 4.38.0 to 4.62.0

Author: bashtage

doc/requirements.txt

@@ -12,4 +12,5 @@ matplotlib
 seaborn
 mypy_extensions>=0.4
 # mistune<2
-jupyterlab>=4.4.8 # not directly required, pinned by Snyk to avoid a vulnerability
+jupyterlab>=4.4.8 # not directly required, pinned by Snyk to avoid a vulnerability
+fonttools>=4.62.0 # not directly required, pinned by Snyk to avoid a vulnerability