Update Ruby to v3.1.6

Heroku no longer supports Ruby 3.0.7. This commit updates Ruby from
version 3.0.7 to 3.1.6. We are incrementally upgrading Ruby to
eventually get to 3.3.4 (or later).

We are deliberately pinning Psych and will unpin it in the future.

Ref:
- https://devcenter.heroku.com/articles/ruby-support#supported-runtimes
- https://www.ruby-lang.org/en/downloads/releases/

.circleci/config.yml

@@ -3,7 +3,7 @@ jobs:
  build:
  parallelism: 3
  docker:
- - image: cimg/ruby:3.0.7-node-browsers
+ - image: cimg/ruby:3.1.6-node-browsers
  environment:
  BUNDLE_JOBS: 3
  BUNDLE_RETRY: 3

.ruby-version

@@ -1 +1 @@
-3.0.7
+3.1.6

.tool-versions

@@ -1 +1 @@
-ruby 3.0.7
+ruby 3.1.6

Gemfile

@@ -1,6 +1,6 @@
 source "https://rubygems.org"
 
-ruby "3.0.7"
+ruby "3.1.6"
 
 git_source(:github) do |repo_name|
  "https://github.com/#{repo_name}.git"
@@ -40,6 +40,7 @@ gem "pg"
 gem "pg_search"
 gem "pry-byebug"
 gem "pry-rails"
+gem "psych", "< 4"
 gem "puma"
 gem "rack-rewrite"
 gem "rails"

Gemfile.lock

@@ -357,6 +357,7 @@ GEM
  pry (~> 0.13.0)
  pry-rails (0.3.9)
  pry (>= 0.10.4)
+ psych (3.3.4)
  public_suffix (6.0.0)
  puma (5.6.8)
  nio4r (~> 2.0)
@@ -637,6 +638,7 @@ DEPENDENCIES
  pg_search
  pry-byebug
  pry-rails
+ psych (< 4)
  puma
  rack-cors
  rack-livereload
@@ -678,7 +680,7 @@ DEPENDENCIES
  wrapped
 
 RUBY VERSION
- ruby 3.0.7p220
+ ruby 3.1.6p260
 
 BUNDLED WITH
  2.5.15