Dont need to pin for GHA

Co-authored-by: Andrew Murray <[email protected]>

Author: hugovk

.github/workflows/test.yml

@@ -93,7 +93,7 @@ jobs:
     - name: Docs
       if: startsWith(matrix.os, 'ubuntu') && matrix.python-version == 3.9
       run: |
-        python3 -m pip install sphinx-copybutton sphinx-issues>=3.0.1 sphinx-removed-in sphinx-rtd-theme sphinxext-opengraph
+        python3 -m pip install sphinx-copybutton sphinx-issues sphinx-removed-in sphinx-rtd-theme sphinxext-opengraph
         make doccheck
 
     - name: After success