Fix dummy app tests: skip version validation in monorepo context

The dummy app integration tests were failing with:
"ERROR ReactOnRails: You have the Pro gem installed but are using the base 'react-on-rails' package"

This occurred because:
1. Tests run with bundle exec from repo root
2. Root Gemfile includes BOTH base and Pro gems (via gemspecs)
3. Dummy app package.json only has base package (intentionally)
4. Version checker correctly detected this mismatch

The dummy app is specifically for testing the BASE gem/package, not Pro.
In a monorepo development/testing context, it's expected that Pro gem
may be available in the parent bundle even when testing the base gem.

Solution: Add REACT_ON_RAILS_SKIP_VALIDATION=true to dummy test tasks,
matching the existing pattern used for example app tests (line 85).

This fix resolves the CI failure in:
https://github.com/shakacode/react_on_rails/actions/runs/19616420258/job/56169682395?pr=2108

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: justin808

rakelib/run_rspec.rake

@@ -60,8 +60,14 @@ namespace :run_rspec do
 
   desc "Runs dummy rspec with turbolinks"
   task dummy: ["dummy_apps:dummy_app"] do
+    # Build env vars array for robustness with complex environment variables
+    env_vars_array = []
+    env_vars_array << rbs_runtime_env_vars unless rbs_runtime_env_vars.empty?
+    # Skip validation since dummy app only has base gem/package but Pro may be available in parent bundle
+    env_vars_array << "REACT_ON_RAILS_SKIP_VALIDATION=true"
+    env_vars = env_vars_array.join(" ")
     run_tests_in(spec_dummy_dir,
-                 env_vars: rbs_runtime_env_vars)
+                 env_vars: env_vars)
   end
 
   desc "Runs dummy rspec without turbolinks"
@@ -70,6 +76,8 @@ namespace :run_rspec do
     env_vars_array = []
     env_vars_array << rbs_runtime_env_vars unless rbs_runtime_env_vars.empty?
     env_vars_array << "DISABLE_TURBOLINKS=TRUE"
+    # Skip validation since dummy app only has base gem/package but Pro may be available in parent bundle
+    env_vars_array << "REACT_ON_RAILS_SKIP_VALIDATION=true"
     env_vars = env_vars_array.join(" ")
     run_tests_in(spec_dummy_dir,
                  env_vars: env_vars,