chore: bump pydata-sphinx-theme from 0.18.0 to 0.19.0 in the pip group

Author: InessaPawson

pyproject.toml

@@ -8,7 +8,7 @@ dynamic = [
     "version"
 ]
 dependencies = [
-    "pydata-sphinx-theme==0.18.0",
+    "pydata-sphinx-theme==0.19.0",
     "myst-nb",
     "sphinx",
     "sphinx-autobuild",