Create next tag in NPM when prerelease (#1087)

Author: EzraBrooks

.github/workflows/cd.yml

@@ -30,3 +30,7 @@ jobs:
       - run: npm ci
       - run: npm run build
       - run: npm publish
+        if: "!github.event.release.prerelease"
+      # npm requires explicitly specifying a "tag" like `next` if the semantic version is a prerelease like `2.0.0-alpha1`
+      - run: npm publish --tag next
+        if: github.event.release.prerelease

package.json

@@ -2,7 +2,7 @@
   "name": "roslib",
   "homepage": "https://robotwebtools.github.io",
   "description": "The standard ROS Javascript Library",
-  "version": "2.0.0-alpha3",
+  "version": "2.0.0-alpha4",
   "license": "BSD-2-Clause",
   "files": [
     "dist"