Move json_schemer install to Gemfile

Library/Homebrew/Gemfile

@@ -8,6 +8,7 @@ source "https://rubygems.org"
 # installed gems (should all be require: false)
 gem "bootsnap", require: false
 gem "byebug", require: false
+gem "json_schemer", require: false
 gem "minitest", require: false
 gem "parallel_tests", require: false
 gem "ronn", require: false

Library/Homebrew/Gemfile.lock

@@ -25,14 +25,22 @@ GEM
     docile (1.4.0)
     domain_name (0.5.20190701)
       unf (>= 0.0.5, < 1.0.0)
+    ecma-re-validator (0.3.0)
+      regexp_parser (~> 2.0)
     elftools (1.1.3)
       bindata (~> 2)
+    hana (1.3.7)
     highline (2.0.3)
     hpricot (0.8.6)
     http-cookie (1.0.4)
       domain_name (~> 0.5)
     i18n (1.8.10)
       concurrent-ruby (~> 1.0)
+    json_schemer (0.2.18)
+      ecma-re-validator (~> 0.3)
+      hana (~> 1.3)
+      regexp_parser (~> 2.0)
+      uri_template (~> 0.7)
     mechanize (2.8.1)
       addressable (~> 2.7)
       domain_name (~> 0.5, >= 0.5.20190701)
@@ -171,6 +179,7 @@ GEM
       unf_ext
     unf_ext (0.0.7.7)
     unicode-display_width (2.0.0)
+    uri_template (0.7.0)
     warning (1.2.0)
     webrick (1.7.0)
     webrobots (0.1.2)
@@ -185,6 +194,7 @@ DEPENDENCIES
   byebug
   concurrent-ruby
   did_you_mean
+  json_schemer
   mechanize
   minitest
   parallel_tests

Library/Homebrew/github_packages.rb

@@ -75,7 +75,6 @@ class GitHubPackages
       skopeo = Formula["skopeo"].opt_bin/"skopeo"
     end
 
-    Homebrew.install_gem!("json_schemer")
     require "json_schemer"
 
     load_schemas!