Upgrade Ruby to 2.7, Bundler to 2.2.20 (18F#241)

* Upgrade Ruby to 2.7, Bundler to 2.2.20

**Why**: To sync with identity-idp, and to resolve CircleCI build failures.

* Restore capitalization

Author: aduth

.circleci/config.yml

@@ -1,21 +1,28 @@
 version: 2.1
 
+executors:
+  ruby_node_browsers:
+    docker:
+      - image: circleci/ruby:2.7-node-browsers
+        environment:
+          BUNDLER_VERSION: 2.2.20
+
 commands:
   bundle-npm-install:
     steps:
       - restore_cache:
-          key: dependency-cache-ruby-2-6-{{ checksum "package-lock.json" }}-{{ checksum "Gemfile.lock" }}
+          key: dependency-cache-ruby-2-7-{{ checksum "package-lock.json" }}-{{ checksum "Gemfile.lock" }}
       - run:
           name: Update Bundler
-          command: gem install bundler -v "<2"
+          command: gem install bundler --version $BUNDLER_VERSION
       - run:
           name: Install bundle dependencies
           command: bundle check --path ~/.bundler || bundle install --path ~/.bundler
       - run:
           name: Install dependencies
           command: npm ci
       - save_cache:
-          key: dependency-cache-ruby-2-6-{{ checksum "package-lock.json" }}-{{ checksum "Gemfile.lock" }}
+          key: dependency-cache-ruby-2-7-{{ checksum "package-lock.json" }}-{{ checksum "Gemfile.lock" }}
           paths:
             - ~/.npm
             - ~/.bundler
@@ -28,8 +35,7 @@ commands:
 jobs:
   lints:
     working_directory: ~/identity-style-guide
-    docker:
-      - image: circleci/ruby:2.6-node-browsers
+    executor: ruby_node_browsers
     steps:
       - checkout
       - bundle-npm-install
@@ -38,8 +44,7 @@ jobs:
           command: npm run lint
   integration:
     working_directory: ~/identity-style-guide
-    docker:
-      - image: circleci/ruby:2.6-node-browsers
+    executor: ruby_node_browsers
     environment:
       SKIP_VISUAL_REGRESSION_TEST: true
     steps:
@@ -51,8 +56,7 @@ jobs:
           command: npm run test-jest
   visual-regression:
     working_directory: ~/identity-style-guide
-    docker:
-      - image: circleci/ruby:2.6-node-browsers
+    executor: ruby_node_browsers
     environment:
       ONLY_VISUAL_REGRESSION_TEST: true
     steps:
@@ -69,8 +73,7 @@ jobs:
           path: tmp/results
   accessibility:
     working_directory: ~/identity-style-guide
-    docker:
-      - image: circleci/ruby:2.6-node-browsers
+    executor: ruby_node_browsers
     steps:
       - checkout
       - bundle-npm-install

.ruby-version

@@ -1 +1 @@
-2.6
+2.7

Gemfile.lock

@@ -4,36 +4,36 @@ GEM
     addressable (2.8.0)
       public_suffix (>= 2.0.2, < 5.0)
     colorator (1.1.0)
-    concurrent-ruby (1.1.5)
-    em-websocket (0.5.1)
+    concurrent-ruby (1.1.9)
+    em-websocket (0.5.2)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0.6.0)
     eventmachine (1.2.7)
-    ffi (1.11.1)
+    ffi (1.15.3)
     forwardable-extended (2.6.0)
     http_parser.rb (0.6.0)
-    i18n (1.6.0)
+    i18n (1.8.10)
       concurrent-ruby (~> 1.0)
-    jekyll (4.0.0)
+    jekyll (4.2.0)
       addressable (~> 2.4)
       colorator (~> 1.0)
       em-websocket (~> 0.5)
-      i18n (>= 0.9.5, < 2)
+      i18n (~> 1.0)
       jekyll-sass-converter (~> 2.0)
       jekyll-watch (~> 2.0)
-      kramdown (~> 2.1)
+      kramdown (~> 2.3)
       kramdown-parser-gfm (~> 1.0)
       liquid (~> 4.0)
-      mercenary (~> 0.3.3)
+      mercenary (~> 0.4.0)
       pathutil (~> 0.9)
       rouge (~> 3.0)
       safe_yaml (~> 1.0)
-      terminal-table (~> 1.8)
+      terminal-table (~> 2.0)
     jekyll-redirect-from (0.16.0)
       jekyll (>= 3.3, < 5.0)
-    jekyll-sass-converter (2.0.0)
+    jekyll-sass-converter (2.1.0)
       sassc (> 2.0.1, < 3.0)
-    jekyll-sitemap (1.3.1)
+    jekyll-sitemap (1.4.0)
       jekyll (>= 3.7, < 5.0)
     jekyll-watch (2.2.1)
       listen (~> 3.0)
@@ -42,26 +42,24 @@ GEM
     kramdown-parser-gfm (1.1.0)
       kramdown (~> 2.0)
     liquid (4.0.3)
-    listen (3.1.5)
-      rb-fsevent (~> 0.9, >= 0.9.4)
-      rb-inotify (~> 0.9, >= 0.9.7)
-      ruby_dep (~> 1.2)
-    mercenary (0.3.6)
+    listen (3.7.0)
+      rb-fsevent (~> 0.10, >= 0.10.3)
+      rb-inotify (~> 0.9, >= 0.9.10)
+    mercenary (0.4.0)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
     public_suffix (4.0.6)
-    rb-fsevent (0.10.3)
-    rb-inotify (0.10.0)
+    rb-fsevent (0.11.0)
+    rb-inotify (0.10.1)
       ffi (~> 1.0)
     rexml (3.2.5)
-    rouge (3.9.0)
-    ruby_dep (1.5.0)
+    rouge (3.26.0)
     safe_yaml (1.0.5)
-    sassc (2.1.0)
+    sassc (2.4.0)
       ffi (~> 1.9)
-    terminal-table (1.8.0)
+    terminal-table (2.0.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
-    unicode-display_width (1.6.0)
+    unicode-display_width (1.7.0)
 
 PLATFORMS
   ruby
@@ -72,4 +70,4 @@ DEPENDENCIES
   jekyll-sitemap (>= 1.3.1)
 
 BUNDLED WITH
-   1.17.3
+   2.2.20