Release 3.0.0 and use npm for dependency handling

3.0.0-alpha.5 on Nexus seems to be corrupt. Releasing a proper 3.0.0
version should help.
Signed-off-by: Snorre Magnus Davøen <snorre.davoen@nsd.no>

.gitlab-ci.yml

@@ -14,8 +14,8 @@ test:
     - echo $NEXUS_NPM_TOKEN > ~/.npmrc
     - echo 'always-auth=true' >> ~/.npmrc
     - npm set registry https://nexus.nsd.no/repository/npm-group/
-    - yarn install
-    - yarn compile
+    - npm install
+    - npm run compile
   artifacts:
     expire_in: 1 week
     paths:
@@ -35,8 +35,8 @@ test-release:
     - echo $NEXUS_NPM_TOKEN > ~/.npmrc
     - echo 'always-auth=true' >> ~/.npmrc
     - npm set registry https://nexus.nsd.no/repository/npm-group/
-    - yarn install
-    - yarn compile
+    - npm install
+    - npm run compile
   artifacts:
     expire_in: 1 week
     paths:

package.json

 {
   "name": "@nsd/log-schema-node",
-  "version": "3.0.0-alpha.5",
+  "version": "3.0.0",
   "main": "lib/index.js",
   "types": "lib/index",
   "scripts": {