add bump-versions scripts for major/minor update

package.json

@@ -35,6 +35,8 @@
     "app:server": "yarn lerna run server --scope @growi/app",
     "slackbot-proxy:build": "yarn lerna run build --scope @growi/slackbot-proxy --scope @growi/slack",
     "slackbot-proxy:server": "yarn lerna run start:prod --scope @growi/slackbot-proxy",
+    "bump-versions:major": "node ./bin/github-actions/bump-versions -i major",
+    "bump-versions:minor": "node ./bin/github-actions/bump-versions -i minor",
     "bump-versions:patch": "node ./bin/github-actions/bump-versions -i patch",
     "bump-versions:rc": "node ./bin/github-actions/bump-versions -i prerelease",
     "bump-versions:slackbot-proxy": "node ./bin/github-actions/bump-versions -i prerelease -d packages/slackbot-proxy --preid slackbot-proxy --update-dependencies false",