Revert "Update actions/setup-node action to v4"

This reverts commit 7552aa0.

Author: daniellockyer

.github/workflows/ci.yml

@@ -48,7 +48,7 @@ jobs:
     name: ${{ matrix.os }} (node=${{ matrix.node }}, host=${{ matrix.host }}, target=${{ matrix.target }})
     steps:
       - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v3
         with:
           node-version: ${{ matrix.node }}
           architecture: ${{ matrix.host }}