Prepare an rc release for 3.9.0

Author: tsmith023

.github/workflows/main.yaml

@@ -125,7 +125,7 @@ jobs:
           registry-url: 'https://registry.npmjs.org'
       - run: npm ci
       - run: npm run build
-      - run: npm publish
+      - run: npm publish --tag next
         env:
           NODE_AUTH_TOKEN: ${{ secrets.NPM_AUTOMATION_TOKEN }}
       - run: npm run docs