feat: take changelog version from bridge package

package.json

@@ -3,7 +3,7 @@
   "description": "Slate collaborative plugin & microservice",
   "scripts": {
     "bootstrap": "lerna bootstrap",
-    "version": "auto-changelog -p --template changelog-template.hbs && git add CHANGELOG.md",
+    "version": "auto-changelog -p ./packages/bridge/package.json --template changelog-template.hbs && git add CHANGELOG.md",
     "clean": "rimraf ./packages/**/lib/ && rimraf ./packages/**/tsconfig.tsbuildinfo && lerna clean --yes",
     "release": "yarn prebuild && yarn build && lerna version && lerna publish from-package",
     "deploy:site": "git subtree push --prefix packages/example heroku master",
@@ -46,6 +46,5 @@
     "lint-staged": "^9.2.5",
     "prettier": "^1.18.2",
     "rimraf": "^3.0.2"
-  },
-  "version": "0.6.5"
+  }
 }