Merge pull request #1019 from VWS-Python/dependabot/pip/requirements/sphinxcontrib-spelling-7.3.0

Bump sphinxcontrib-spelling from 7.2.1 to 7.3.0 in /requirements

Author: adamtheturtle

requirements/dev-requirements.txt

@@ -29,7 +29,7 @@ requests-mock-flask==2021.7.10.0
 sphinx-autodoc-typehints==1.12.0
 sphinx_paramlinks==0.5.2
 sphinxcontrib-httpdomain==1.8.0
-sphinxcontrib-spelling==7.2.1
+sphinxcontrib-spelling==7.3.0
 twine==3.7.0
 types-Flask==1.1.6
 types-freezegun==1.1.3