fix workflow not actually settings PATH variable

Author: samualtnorman

.github/workflows/test.yml

@@ -9,7 +9,7 @@ jobs:
     - { name: Checkout, uses: actions/checkout@v4 }
     - { name: Setup Node.js environment, uses: actions/setup-node@v4, with: { node-version: ^18 || >=20 } }
     - { name: Setup pnpm, uses: pnpm/action-setup@v3, with: { version: ^9.0.1, run_install: true } }
-    - run: export PATH=$PWD/node_modules/.bin:$PATH
+    - run: echo $PWD/node_modules/.bin:$PATH > $GITHUB_PATH
     - run: scripts/package.sh
     - run: scripts/lint.sh
     - run: vitest run