Publish mainline changesets releases with the rc tag for now, in such…

… a way that actually works

.github/workflows/publish-packages.yml

@@ -45,13 +45,14 @@ jobs:
 
       - name: Choose Build Step
         id: build-step-decider
-        run: echo "step-name=${{ steps.changesets.outputs.hasChangesets == 'false' && 'publish-packages --tag rc --concurrency=95.84%' || 'build' }}" >> $GITHUB_OUTPUT
+        run: echo "step-name=${{ steps.changesets.outputs.hasChangesets == 'false' && 'publish-packages --concurrency=95.84%' || 'build' }}" >> $GITHUB_OUTPUT
 
       - name: Run Build Step (force)
         run: pnpm turbo ${{ steps.build-step-decider.outputs.step-name }} --force=true
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
+          PUBLISH_TAG: rc
 
       - name: Stop Test Validator
         if: always() && steps.start-test-validator.outcome == 'success'