update ruby to 3.0.2 and some gem updates

.circleci/config.yml

@@ -2,7 +2,7 @@ version: 2
 jobs:
   build:
     docker:
-      - image: circleci/ruby:2.6.6-node-browsers
+      - image: circleci/ruby:3.0.2-node-browsers
       - image: postgres:9.6
         environment:
           POSTGRES_HOST_AUTH_METHOD: trust

.ruby-version

@@ -1 +1 @@
-2.6.6
+3.0.2

Gemfile

@@ -5,11 +5,12 @@ ruby File.read('.ruby-version').strip
 gem 'rails', '~> 6.x'
 
 gem 'american_date' # this gives us the `to_date` method that we use in several places
+gem 'authy', '2.7.5'
 gem 'carrierwave'
 gem 'carrierwave-aws'
 gem 'chartkick'
 gem 'devise'
-gem 'devise-authy'
+gem 'devise-authy', '2.2.1' # implementation changes after this point
 gem 'devise_invitable'
 gem 'devise-security'
 gem 'faker' # used for seed data on staging
@@ -38,11 +39,10 @@ group :development, :test do
   gem 'factory_bot_rails', require: false
   gem 'rspec-rails', require: false
   gem 'rubocop'
-  gem 'selenium-webdriver', '3.141.0' # version locked bc/ https://stackoverflow.com/questions/56445641/ruby-watir-selenium-webdriver-depricated-warning/
+  gem 'selenium-webdriver'
   gem 'shoulda-matchers'
   gem 'simplecov'
   gem 'webdrivers'
-  gem 'webmock', '~> 2.1', require: false
 end
 
 group :production do
@@ -54,6 +54,6 @@ end
 group :development do
   gem 'brakeman'
   gem 'listen'
-  gem 'tocer', '~> 9.1' # used for the table of contents in our Readme
+  gem 'tocer' # used for the table of contents in our Readme
 end