Use depot runner (#6)

Author: tstirrat15

.github/workflows/publish.yaml

@@ -13,7 +13,7 @@ permissions:
 jobs:
   publish:
     name: Publish to NPM
-    runs-on: ubuntu-latest
+    runs-on: "depot-ubuntu-24.04-small"
     steps:
       - uses: actions/checkout@v6
       - uses: "pnpm/action-setup@v4"
@@ -27,7 +27,9 @@ jobs:
       # Ensure npm 11.5.1 or later is installed;
       # this is required for publishing using OIDC authn
       - name: "Update npm"
-        run: "npm install -g npm@latest"
+        # NOTE: sudo is needed here because the original npm is installed
+        # with sudo on npm images.
+        run: "sudo npm install -g npm@latest"
       - name: "Install dependencies"
         run: "pnpm install"
       # Set the version in package.json to match the tag