pass git committers token to docs build

Author: FuzzyGrim

.github/workflows/build-docs.yml

@@ -32,6 +32,8 @@ jobs:
             mkdocs-material-
       - run: pip install -r docs/requirements.txt
       - name: Deploy versioned docs
+        env:
+          MKDOCS_GIT_COMMITTERS_APIKEY: ${{ secrets.MKDOCS_GIT_COMMITTERS_APIKEY }}
         run: mike deploy --push ${{ github.ref_name }}
       - name: Set default docs version
         if: github.ref_name == 'release'