Fix doc deploy

Author: davidanthoff

.github/workflows/deploy-docs.yml

@@ -16,7 +16,7 @@ jobs:
       - uses: actions/checkout@v1.0.0
       - uses: julia-actions/setup-julia@v2
         with:
-          version: 1.10
+          version: '1.10'
       - uses: julia-actions/julia-docdeploy@releases/v1
         env:
           DOCUMENTER_KEY: ${{ secrets.DOCUMENTER_KEY }}