Update .circleci/config.yml

Author: wteuber

.circleci/config.yml

@@ -1,15 +1,54 @@
 version: 2.1
-orbs:
-  ruby: circleci/ruby@0.1.2 
 
 jobs:
-  build:
+  build_ruby_2_6:
     docker:
-      - image: circleci/ruby:2.6.3-stretch-node
-    executor: ruby/default
+      - image: 'cimg/ruby:2.6'
     steps:
       - checkout
-      - run:
-          name: Which bundler?
-          command: bundle -v
-      - ruby/bundle-install
+      - run: 'bundle install'
+      - run: './test/test_git-status-tree'
+  build_ruby_2_7:
+    docker:
+      - image: 'cimg/ruby:2.7'
+    steps:
+      - checkout
+      - run: 'bundle install'
+      - run: './test/test_git-status-tree'
+  build_ruby_3_0:
+    docker:
+      - image: 'cimg/ruby:3.0'
+    steps:
+      - checkout
+      - run: 'bundle install'
+      - run: './test/test_git-status-tree'
+  build_ruby_3_1:
+    docker:
+      - image: 'cimg/ruby:3.1'
+    steps:
+      - checkout
+      - run: 'bundle install'
+      - run: './test/test_git-status-tree'
+  build_ruby_3_2:
+    docker:
+      - image: 'cimg/ruby:3.2'
+    steps:
+      - checkout
+      - run: 'bundle install'
+      - run: './test/test_git-status-tree'
+workflows:
+  build_ruby_2_6:
+    jobs:
+      - build_ruby_2_6
+  build_ruby_2_7:
+    jobs:
+      - build_ruby_2_7
+  build_ruby_3_0:
+    jobs:
+      - build_ruby_3_0
+  build_ruby_3_1:
+    jobs:
+      - build_ruby_3_1
+  build_ruby_3_2:
+    jobs:
+      - build_ruby_3_2