Update ccip-execution-latency.mdx (#2894)

Author: HelloKashif

src/content/ccip/ccip-execution-latency.mdx

@@ -154,7 +154,7 @@ This section provides an overview of the finality methods CCIP uses to determine
 | Mind Network      | Finality tag                              | 1 hour                      |
 | Mode              | Finality tag                              | 37 minutes                  |
 | OP                | Finality tag                              | 20 minutes                  |
-| Polygon           | Finality tag                              | 2 minutes                   |
+| Polygon           | [Block depth](#block-depth) (500 blocks)  | 17 minutes                  |
 | Polygon zkEVM     | Finality tag                              | 2 hours                     |
 | Ronin             | Finality tag                              | 10 seconds                  |
 | Scroll            | Finality tag                              | 1 hour                      |