message: chore(system): simplify release scripts
diff: "commit": "git-cz",
  "commitmsg": "conventional-changelog-lint -e",
  "changelog": "conventional-changelog --preset angular --infile changelog.md --same-file --output-unreleased",
  - "push": "git push && git push --tags && hub release create \"v$(cat .git/RELEASE_VERSION.tmp)\" --message=\"v$(cat .git/RELEASE_VERSION.tmp)\n$(cat .git/COMMITMSG.tmp)\" && npm publish && rm .git/RELEASE_VERSION.tmp && rm .git/COMMITMSG.tmp",
  + "push": "git push && git push --tags && hub release create \"v$npm_package_version\" --message=\"v$npm_package_version\n$(conventional-changelog -p angular)\" && npm publish",
  "release": "npm version $(conventional-recommended-bump -p angular)",
  "preversion": "npm run build && npm test",
  - "version": "npm run changelog && git add . && echo \"$(conventional-changelog -p angular)\" > .git/COMMITMSG.tmp",
  - "postversion": "echo $(git log -1 --pretty=%B HEAD^..HEAD) > .git/RELEASE_VERSION.tmp && git tag -d v$(cat .git/RELEASE_VERSION.tmp) && git commit --amend -m \"chore(release): $(cat .git/RELEASE_VERSION.tmp)\n$(cat .git/COMMITMSG.tmp)\" && git tag -a v$(cat .git/RELEASE_VERSION.tmp) -m \"$(cat .git/COMMITMSG.tmp)\""
  + "version": "npm run changelog && git add . && echo \"$(conventional-changelog -p angular)\"",
  + "postversion": "git tag -d v$npm_package_version && git commit --amend -m \"chore(release): $npm_package_version\n$(conventional-changelog -p angular)\" && git tag -a v$npm_package_version -m \"$(conventional-changelog -p angular)\""
  },
  "config": {
  "commitizen": {
  