.travis.yml in cose-1.0.0 vs .travis.yml in cose-1.1.0

@@ -2,16 +2,17 @@
 language: ruby
 cache: bundler
 
 rvm:
   - ruby-head
-  - 2.7.0
-  - 2.6.5
-  - 2.5.7
-  - 2.4.9
+  - 2.7.1
+  - 2.6.6
+  - 2.5.8
+  - 2.4.10
 
 gemfile:
   - gemfiles/openssl_head.gemfile
+  - gemfiles/openssl_2_2.gemfile
   - gemfiles/openssl_2_1.gemfile
   - gemfiles/openssl_2_0.gemfile
   - gemfiles/openssl_default.gemfile
 
 before_install: gem install bundler -v '~> 2.0'