Fix floor gas for create and enable spec tests (#13481)

Author: somnathb1

Diff for: erigon-lib/txpool/txpoolcfg/txpoolcfg.go

@@ -194,8 +194,8 @@ func CalcIntrinsicGas(dataLen, dataNonZeroLen, authorizationsLen uint64, accessL
 		gas = fixedgas.TxGasContractCreation
 	} else {
 		gas = fixedgas.TxGas
-		floorGas7623 = fixedgas.TxGas
 	}
+	floorGas7623 = fixedgas.TxGas
 	// Bump the required gas by the amount of transactional data
 	if dataLen > 0 {
 		// Zero and non-zero bytes are priced differently

Diff for: tests/exec_spec_test.go

@@ -19,11 +19,9 @@ func TestExecutionSpec(t *testing.T) {
 	log.Root().SetHandler(log.LvlFilterHandler(log.LvlError, log.StderrHandler))
 
 	bt := new(testMatcher)
-	bt.skipLoad(`^`)
 
 	dir := filepath.Join(".", "execution-spec-tests")
 	bt.skipLoad(`^prague/eip2935_historical_block_hashes_from_state/block_hashes/block_hashes_history.json`)
-	// bt.skipLoad(`^cancun`)
 	checkStateRoot := true
 
 	bt.walk(t, dir, func(t *testing.T, name string, test *BlockTest) {