all: update golang/x/ext and fix slice sorting fallout (#27909)

The Go authors updated golang/x/ext to change the function signature of the slices sort method. 
It's an entire shitshow now because x/ext is not tagged, so everyone's codebase just 
picked a new version that some other dep depends on, causing our code to fail building.

This PR updates the dep on our code too and does all the refactorings to follow upstream...

trie/triedb/pathdb/history.go

@@ -262,20 +262,20 @@ func newHistory(root common.Hash, parent common.Hash, block uint64, states *trie
 	for addr := range states.Accounts {
 		accountList = append(accountList, addr)
 	}
-	slices.SortFunc(accountList, func(a, b common.Address) bool { return a.Less(b) })
+	slices.SortFunc(accountList, common.Address.Cmp)
 
 	for addr, slots := range states.Storages {
 		slist := make([]common.Hash, 0, len(slots))
 		for slotHash := range slots {
 			slist = append(slist, slotHash)
 		}
-		slices.SortFunc(slist, func(a, b common.Hash) bool { return a.Less(b) })
+		slices.SortFunc(slist, common.Hash.Cmp)
 		storageList[addr] = slist
 	}
 	for addr := range states.Incomplete {
 		incomplete = append(incomplete, addr)
 	}
-	slices.SortFunc(incomplete, func(a, b common.Address) bool { return a.Less(b) })
+	slices.SortFunc(incomplete, common.Address.Cmp)
 
 	return &history{
 		meta: &meta{

trie/triedb/pathdb/testutils.go

@@ -117,7 +117,7 @@ func hash(states map[common.Hash][]byte) (common.Hash, []byte) {
 	for hash := range states {
 		hs = append(hs, hash)
 	}
-	slices.SortFunc(hs, func(a, b common.Hash) bool { return a.Less(b) })
+	slices.SortFunc(hs, common.Hash.Cmp)
 
 	var input []byte
 	for _, hash := range hs {