Updated install step to deploy stage

Author: s1hofmann

.build/pre-release.sh

@@ -1,5 +1,6 @@
 #!/usr/bin/env bash
 
+npm ci
 patchVersion=$(npm --no-git-tag version patch)
 nextVersion=${patchVersion}-next."$(date +%Y%m%d%k%M%S)"
 echo "${nextVersion:1}"

.travis.yml

@@ -59,7 +59,7 @@ jobs:
       osx_image: xcode11
       language: node_js
       node_js: lts/erbium
-      install: npm ci
+      install: true
       script: true
       before_deploy:
         - echo "//registry.npmjs.org/:_authToken=\${NPM_TOKEN}" >> $HOME/.npmrc 2> /dev/null