restore travis

.travis.yml

@@ -0,0 +1,37 @@
+git:
+  depth: false # we need this to make proper releases
+
+branches:
+  only:
+    - master
+    - /^release\/.+$/
+    - /^major\/.+$/
+
+install: yarn --ignore-engines --ignore-scripts
+os: linux
+
+language: node_js
+dist: bionic
+
+cache:
+  yarn: true
+  directories:
+    - node_modules
+
+jobs:
+  include:
+    - name: '@sentry/packages - build and test [node v6]'
+      node_js: '6'
+      script: scripts/test.sh
+    - name: '@sentry/packages - build and test [node v8]'
+      node_js: '8'
+      script: scripts/test.sh
+    - name: '@sentry/packages - build and test [node v10]'
+      node_js: '10'
+      script: scripts/test.sh
+    - name: '@sentry/packages - build and test [node v12]'
+      node_js: '12'
+      script: scripts/test.sh
+    - name: '@sentry/packages - build and test [node v14]'
+      node_js: '14'
+      script: scripts/test.sh