bump version

apps/app/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@growi/app",
-  "version": "7.3.5-RC.0",
+  "version": "7.4.0-RC.0",
   "license": "MIT",
   "private": "true",
   "scripts": {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "growi",
-  "version": "7.3.5-RC.0",
+  "version": "7.4.0-RC.0",
   "description": "Team collaboration software using markdown",
   "license": "MIT",
   "private": "true",