Update performance comparison to inclue Ruby 4.0.0 metrics

Author: jvmvik

README.md

@@ -1013,12 +1013,12 @@ see: [https://serpapi.com/yelp-search-api](https://serpapi.com/yelp-search-api)
 
 ### Ruby 3.4.4 vs Ruby 2.7.8 Performance
 
-| Metric | Ruby 2.7.8 | Ruby 3.4.4 | Improvement |
-|--------|------------|------------|-------------|
-| **SerpApi Non-Persistent** | 100.93 req/s | 114.97 req/s | **+13.9%** |
-| **SerpApi Persistent** | 226.82 req/s | 255.07 req/s | **+12.4%** |
-| **HTTP.rb Non-Persistent** | 270.62 req/s | 294.01 req/s | **+8.6%** |
-| **HTTP.rb Persistent** | 347.04 req/s | 570.95 req/s | **+64.5%** |
+| Metric | Ruby 2.7.8 | Ruby 3.4.4 | Ruby 4.0.0 | Improvement (3.4.4 vs 2.7.8) |
+|--------|------------|------------|------------|------------------------------|
+| **SerpApi Non-Persistent** | 100.93 req/s | 114.97 req/s | 120.09 req/s | **+13.9%** |
+| **SerpApi Persistent** | 226.82 req/s | 255.07 req/s | 296.05 req/s | **+12.4%** |
+| **HTTP.rb Non-Persistent** | 270.62 req/s | 294.01 req/s | 319.81 req/s | **+8.6%** |
+| **HTTP.rb Persistent** | 347.04 req/s | 570.95 req/s | 456.93 req/s | **+64.5%** |
 
 ### Key Takeaways
 1. **Upgrade to Ruby 3.4.4**: Clear performance benefits across all scenarios

README.md.erb

@@ -494,12 +494,12 @@ see: [https://serpapi.com/yelp-search-api](https://serpapi.com/yelp-search-api)
 
 ### Ruby 3.4.4 vs Ruby 2.7.8 Performance
 
-| Metric | Ruby 2.7.8 | Ruby 3.4.4 | Improvement |
-|--------|------------|------------|-------------|
-| **SerpApi Non-Persistent** | 100.93 req/s | 114.97 req/s | **+13.9%** |
-| **SerpApi Persistent** | 226.82 req/s | 255.07 req/s | **+12.4%** |
-| **HTTP.rb Non-Persistent** | 270.62 req/s | 294.01 req/s | **+8.6%** |
-| **HTTP.rb Persistent** | 347.04 req/s | 570.95 req/s | **+64.5%** |
+| Metric | Ruby 2.7.8 | Ruby 3.4.4 | Ruby 4.0.0 | Improvement (3.4.4 vs 2.7.8) |
+|--------|------------|------------|------------|------------------------------|
+| **SerpApi Non-Persistent** | 100.93 req/s | 114.97 req/s | 120.09 req/s | **+13.9%** |
+| **SerpApi Persistent** | 226.82 req/s | 255.07 req/s | 296.05 req/s | **+12.4%** |
+| **HTTP.rb Non-Persistent** | 270.62 req/s | 294.01 req/s | 319.81 req/s | **+8.6%** |
+| **HTTP.rb Persistent** | 347.04 req/s | 570.95 req/s | 456.93 req/s | **+64.5%** |
 
 ### Key Takeaways
 1. **Upgrade to Ruby 3.4.4**: Clear performance benefits across all scenarios