Check lock files for changes as well

Signed-off-by: Joas Schilling <coding@schilljs.com>

check-vuejs-builds.sh

@@ -7,3 +7,7 @@ make build-js-production
 git status
 
 bash -c "[[ ! \"`git status --porcelain js`\" ]] || ( echo 'Uncommitted changes in built Vue files' && exit 1 )"
+
+bash -c "[[ ! \"`git status --porcelain package-lock.json`\" ]] || ( git diff package-lock.json && echo 'Uncommitted changes in package-lock.json' && exit 1 )"
+
+bash -c "[[ ! \"`git status --porcelain vue/package-lock.json`\" ]] || ( git diff vue/package-lock.json && echo 'Uncommitted changes in vue/package-lock.json' && exit 1 )"