chore: update to static cms 4.0.0

Author: KaneFreeman

package.json

@@ -1,7 +1,7 @@
 {
   "name": "gatsby-plugin-static-cms",
   "description": "A Gatsby plugin which generates the Static CMS single page app",
-  "version": "3.0.1",
+  "version": "4.0.0",
   "license": "MIT",
   "repository": "https://github.com/StaticJsCMS/gatsby-plugin-static-cms.git",
   "bugs": "https://github.com/StaticJsCMS/gatsby-plugin-static-cms/issues",
@@ -29,7 +29,7 @@
   "devDependencies": {
     "@babel/cli": "^7.21.0",
     "@babel/core": "^7.21.0",
-    "@staticcms/app": "^3.0.0",
+    "@staticcms/app": "^4.0.0",
     "babel-preset-gatsby-package": "^3.7.0",
     "cross-env": "^7.0.3",
     "react": "^18.2.0",
@@ -38,7 +38,7 @@
   "homepage": "https://github.com/StaticJsCMS/gatsby-plugin-static-cms",
   "main": "index.js",
   "peerDependencies": {
-    "@staticcms/app": "^3.0.0",
+    "@staticcms/app": "^4.0.0",
     "gatsby": "^5.0.0",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",