Bump run-script from 0.4.0-beta.278 to 0.4.0

Bumps [run-script](https://github.com/xt0rted/dotnet-run-script) from 0.4.0-beta.278 to 0.4.0.

---
updated-dependencies:
- dependency-name: run-script
  dependency-type: direct:development
  update-type: version-update:prerelease
...

Signed-off-by: dotnet-updater[bot] <100138291+dotnet-updater[bot]@users.noreply.github.com>

Author: dotnet-updater[bot]

.config/dotnet-tools.json

@@ -3,7 +3,7 @@
   "isRoot": true,
   "tools": {
     "run-script": {
-      "version": "0.4.0-beta.278",
+      "version": "0.4.0",
       "commands": [
         "r"
       ]