Temp: compare against 7.x

Author: kares

Diff for: .travis.yml

@@ -10,6 +10,7 @@ env:
   - INTEGRATION=true ELASTIC_STACK_VERSION=7.x SNAPSHOT=true LOG_LEVEL=info
   - INTEGRATION=true ELASTIC_STACK_VERSION=8.x SNAPSHOT=true LOG_LEVEL=info
   - SECURE_INTEGRATION=true INTEGRATION=true ELASTIC_STACK_VERSION=8.x SNAPSHOT=true LOG_LEVEL=info
+  - SECURE_INTEGRATION=true INTEGRATION=true ELASTIC_STACK_VERSION=7.x SNAPSHOT=true LOG_LEVEL=info
   - SECURE_INTEGRATION=true INTEGRATION=true ELASTIC_STACK_VERSION=7.x LOG_LEVEL=info
   - SECURE_INTEGRATION=true INTEGRATION=true ELASTIC_STACK_VERSION=7.x ES_SSL_KEY_INVALID=true LOG_LEVEL=info
   - SECURE_INTEGRATION=true INTEGRATION=true ELASTIC_STACK_VERSION=7.x ES_SSL_SUPPORTED_PROTOCOLS=TLSv1.3 LOG_LEVEL=info