fix(travis): move allow_failures from matrix to jobs

drop out use of matrix as it overrides jobs and therefore release step got skipped.

Author: KaiSchwarz-cnic

.travis.yml

@@ -14,9 +14,7 @@ jdk:
   - oraclejdk11
   - openjdk11
   - openjdk-ea
-matrix:
-  allow_failures:
-    - jdk: openjdk-ea
+
 # Trigger a push build on master and dependabot branches + PRs build on every branches
 # Avoid double build on PRs (See https://github.com/travis-ci/travis-ci/issues/1147)
 branches:
@@ -29,6 +27,8 @@ script:
   - mvn -B site
   - mvn -B package
 jobs:
+  allow_failures:
+    - jdk: openjdk-ea
   include:
     - stage: release
       node_js: lts/*