Remove ca-bundle from the flow (#15)

* Remove ca-bundle

* Bump major version of the gem, because we remove jruby 9.2 support due to the absence of it's own certificate

* Bump jruby version in the CI to make it green after certificate removal

* Add ruby 2.7 and ruby 3.0 to the CI

* Add jruby 9.2.20 to the CI

* Return back ruby 2.4 and ruby 2.5

Author: tutelaris

.circleci/config.yml

@@ -8,7 +8,10 @@ executors:
   ruby-24: { docker: [{ image: "ruby:2.4" }] }
   ruby-25: { docker: [{ image: "ruby:2.5" }] }
   ruby-26: { docker: [{ image: "ruby:2.6" }] }
-  jruby-92: { docker: [{ image: "jruby:9.2.7-jdk" }] }
+  ruby-27: { docker: [{ image: "ruby:2.7" }] }
+  ruby-30: { docker: [{ image: "ruby:3.0" }] }
+  jruby-92: { docker: [{ image: "jruby:9.2.20-jdk" }] }
+  jruby-93: { docker: [{ image: "jruby:9.3.4-jdk" }] }
 
 jobs:
   build:
@@ -66,4 +69,8 @@ workflows:
       - build: { name: run-tests-ruby-2.4, executor: ruby-24 }
       - build: { name: run-tests-ruby-2.5, executor: ruby-25 }
       - build: { name: run-tests-ruby-2.6, executor: ruby-26 }
+      - build: { name: run-tests-ruby-2.7, executor: ruby-27 }
+      - build: { name: run-tests-ruby-3.0, executor: ruby-30 }
       - build: { name: run-tests-jruby-92, executor: jruby-92 }
+      - build: { name: run-tests-jruby-93, executor: jruby-93 }
+