[hotfix] Apply workaround for JDK.11 TLS issue

Prevent "No PSK available" error while fetching
artifacts from maven repo on travis.
See https://bugs.openjdk.java.net/browse/JDK-8213202

.travis.yml

@@ -4,6 +4,7 @@ install:
 # files. The "mvn install" command will run by default during the "install"
 # phase by Travis, without the profile flag. Here we customize the install
 # phase to use the relevant profile.
-- mvn install -P test -DskipTests=true -Dmaven.javadoc.skip=true -B -V
+# https.protocols is a workaround for https://bugs.openjdk.java.net/browse/JDK-8213202
+- mvn install -P test -DskipTests=true -Dmaven.javadoc.skip=true -Dhttps.protocols=TLSv1,TLSv1.1,TLSv1.2 -B -V
 script:
 - mvn test -P test -B