chore(package): update semantic-release setup

.travis.yml

@@ -1,16 +1,13 @@
-sudo: false
 language: node_js
 cache:
   directories:
-    - node_modules
+    - ~/.npm
 notifications:
   email: false
 node_js:
   - 'stable'
-before_script:
-  - npm prune
 after_success:
-  - npm run semantic-release
+  - npm run travis-deploy-once "npm run semantic-release"
 branches:
   except:
     - /^v\d+\.\d+\.\d+$/

package.json

@@ -11,7 +11,8 @@
   "scripts": {
     "test": "mocha",
     "prepublish": "node_modules/.bin/tsc -d",
-    "semantic-release": "semantic-release"
+    "semantic-release": "semantic-release",
+    "travis-deploy-once": "travis-deploy-once --pro"
   },
   "bin": "./bin/cli",
   "devDependencies": {
@@ -22,9 +23,10 @@
     "@types/webpack": "^4.4.11",
     "cz-conventional-changelog": "^2.1.0",
     "mocha": "^5.0.0",
-    "semantic-release": "^15.0.0",
+    "semantic-release": "^15.9.9",
     "ts-node": "^6.0.0",
-    "typescript": "^3.0.1"
+    "typescript": "^3.0.1",
+    "travis-deploy-once": "^5.0.3"
   },
   "config": {
     "commitizen": {