Gas validation: Add an exception for Base (#801)

* Gas validation: Add an exception for Base

As noted in issue#800, we are adding an exception for the gas validation check
for Base with an explicit directive for it to be removed when Base adheres to the
standard charter.

* Add to exclusions list instead

---------

Co-authored-by: Vinod Damle <[email protected]>

Author: vdamle

validation/exclusions_test.go

@@ -54,6 +54,11 @@ var exclusions = map[string]map[uint64]bool{
 	OptimismPortal2ParamsTest: {
 		11763072: true, // sepolia-dev0/base-devnet-0
 	},
+	GasLimitTest: {
+		// We're adding an exemption for Base here per https://github.com/ethereum-optimism/superchain-registry/issues/800
+		// TODO - This needs to be removed when Base adheres to the standard charter.
+		8453: true, // base
+	},
 }
 
 var silences = map[string]map[uint64]time.Time{