Always use bundled Tapioca version

Author: amomchilov

lib/spoom/cli/srb/sigs.rb

@@ -141,12 +141,19 @@ class Module; include T::Sig; end
 
           # Now we create a new context to import our modified gem and run tapioca
           say("Running Tapioca...")
+          tapioca_specs = Bundler.load.gems["tapioca"]
+          if tapioca_specs.size > 1
+            raise <<~MSG
+              More than one Tapioca version found in the Bundle:
+              #{tapioca_specs.sort_by(&:version).map { |s| "  - tapioca #{s.version}" }.join("\n")}
+            MSG
+          end
           tapioca_context = Spoom::Context.mktmp!
           tapioca_context.write!("Gemfile", <<~RB)
             source "https://rubygems.org"
 
             gem "rbs", ">= 4.0.0.dev.4"
-            gem "tapioca"
+            gem "tapioca", "#{tapioca_specs.first.version}"
             gem "#{spec.name}", path: "#{copy_context.absolute_path}"
           RB
           exec(tapioca_context, "bundle install")