Correct the way compats are created and saved

Also, stop using Baseline::Service so much

app/services/external/github.rb

@@ -4,14 +4,14 @@ module External
   class Github < Baseline::ExternalService
     REPO = "railsbump/checker"
 
-    add_method :list_branches do |page = 1|
+    def list_branches(page = 1)
       client.branches \
         REPO,
         per_page: 100,
         page:     page
     end
 
-    add_method :delete_branch do |name|
+    def delete_branch(name)
       client.delete_branch \
         REPO,
         name

app/services/gemmies/update_compats.rb

@@ -7,14 +7,16 @@ def call(gemmy)
 
       RailsRelease.find_each do |rails_release|
         gemmy.dependencies.each do |dependencies|
-          rails_release
-            .compats
-            .where("dependencies::jsonb = ?", dependencies.to_json)
-            .first_or_create!
+          unless rails_release.compats.where("dependencies::jsonb = ?", dependencies.to_json).exists?
+            rails_release.compats.create! dependencies: dependencies
+          end
         end
       end
 
-      compats = Compat.where("dependencies::jsonb = ?", gemmy.dependencies.to_json)
+      compats = gemmy.dependencies.flat_map do |dependencies|
+        Compat.where("dependencies::jsonb = ?", dependencies.to_json).to_a
+      end
+
       gemmy.update! compat_ids: compats.pluck(:id).sort
     end
   end

app/services/maintenance/hourly.rb

@@ -4,7 +4,7 @@ def call
       check_uniqueness
 
       call_all_private_methods_without_args \
-        raise_errors: false
+        raise_errors: true
 
       [
         CheckGitBranches,