chore: update to static cms 1.0.0

Author: KaneFreeman

package.json

@@ -39,7 +39,7 @@
   "homepage": "https://github.com/StaticJsCMS/gatsby-plugin-static-cms",
   "main": "index.js",
   "peerDependencies": {
-    "@staticcms/core": "1.0.0-beta8",
+    "@staticcms/core": "^1.0.0",
     "gatsby": "^5.0.0",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",