Sphinx update

Fix rtd security vulnerability

docs/requirements.txt

@@ -1,7 +1,7 @@
 pywfa>=0.5.1
 sphinx==4.2.0
 sphinx_rtd_theme==1.0.0
-readthedocs-sphinx-search==0.1.1
+readthedocs-sphinx-search==0.3.2
 pywfa>=0.5.1
 rich>=12.5.1
 edlib>=1.3.9