Update nextjs action

Author: Dan Costello

.github/workflows/nextjs.yml

@@ -34,7 +34,7 @@ jobs:
       - name: Detect package manager
         id: detect-package-manager
         run: |
-          if [ -f "${{ github.workspace }}/docs/pnpm-lock.yaml" ]; then
+          if [ -f "${{ github.workspace }}/pnpm-lock.yaml" ]; then
             echo "manager=pnpm" >> $GITHUB_OUTPUT
             echo "command=install" >> $GITHUB_OUTPUT
             echo "runner=pnpm" >> $GITHUB_OUTPUT