core/types: fix discrepancy in receipt.EffectiveGasPrice json encoding tags (#27114)

Regenerate receipt json code to remove omit empty. Previously, there was a discrepancy between the generated code and the source. 

---------

Co-authored-by: lightclient@protonmail.com <lightclient@protonmail.com>
Co-authored-by: Martin Holst Swende <martin@swende.se>

cmd/evm/t8n_test.go

@@ -275,7 +275,8 @@ func TestT8n(t *testing.T) {
 		tt.Run("evm-test", args...)
 		// Compare the expected output, if provided
 		if tc.expOut != "" {
-			want, err := os.ReadFile(fmt.Sprintf("%v/%v", tc.base, tc.expOut))
+			file := fmt.Sprintf("%v/%v", tc.base, tc.expOut)
+			want, err := os.ReadFile(file)
 			if err != nil {
 				t.Fatalf("test %d: could not read expected output: %v", i, err)
 			}
@@ -283,9 +284,9 @@ func TestT8n(t *testing.T) {
 			ok, err := cmpJson(have, want)
 			switch {
 			case err != nil:
-				t.Fatalf("test %d, json parsing failed: %v", i, err)
+				t.Fatalf("test %d, file %v: json parsing failed: %v", i, file, err)
 			case !ok:
-				t.Fatalf("test %d: output wrong, have \n%v\nwant\n%v\n", i, string(have), string(want))
+				t.Fatalf("test %d, file %v: output wrong, have \n%v\nwant\n%v\n", i, file, string(have), string(want))
 			}
 		}
 		tt.WaitExit()

cmd/evm/testdata/1/exp.json

@@ -28,6 +28,7 @@
         "transactionHash": "0x0557bacce3375c98d806609b8d5043072f0b6a8bae45ae5a67a00d3a1a18d673",
         "contractAddress": "0x0000000000000000000000000000000000000000",
         "gasUsed": "0x5208",
+        "effectiveGasPrice": null,
         "blockHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
         "transactionIndex": "0x0"
       }

cmd/evm/testdata/13/exp2.json

@@ -16,6 +16,7 @@
         "transactionHash": "0xa98a24882ea90916c6a86da650fbc6b14238e46f0af04a131ce92be897507476",
         "contractAddress": "0x0000000000000000000000000000000000000000",
         "gasUsed": "0x84d0",
+        "effectiveGasPrice": null,
         "blockHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
         "transactionIndex": "0x0"
       },
@@ -29,6 +30,7 @@
         "transactionHash": "0x36bad80acce7040c45fd32764b5c2b2d2e6f778669fb41791f73f546d56e739a",
         "contractAddress": "0x0000000000000000000000000000000000000000",
         "gasUsed": "0x84d0",
+        "effectiveGasPrice": null,
         "blockHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
         "transactionIndex": "0x1"
       }

cmd/evm/testdata/23/exp.json

@@ -15,6 +15,7 @@
         "transactionHash": "0x72fadbef39cd251a437eea619cfeda752271a5faaaa2147df012e112159ffb81",
         "contractAddress": "0x0000000000000000000000000000000000000000",
         "gasUsed": "0x520b",
+        "effectiveGasPrice": null,
         "blockHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
         "transactionIndex": "0x0"
       }

cmd/evm/testdata/24/exp.json

@@ -31,6 +31,7 @@
         "transactionHash": "0x92ea4a28224d033afb20e0cc2b290d4c7c2d61f6a4800a680e4e19ac962ee941",
         "contractAddress": "0x0000000000000000000000000000000000000000",
         "gasUsed": "0xa861",
+        "effectiveGasPrice": null,
         "blockHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
         "transactionIndex": "0x0"
       },
@@ -43,6 +44,7 @@
         "transactionHash": "0x16b1d912f1d664f3f60f4e1b5f296f3c82a64a1a253117b4851d18bc03c4f1da",
         "contractAddress": "0x0000000000000000000000000000000000000000",
         "gasUsed": "0x5aa5",
+        "effectiveGasPrice": null,
         "blockHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
         "transactionIndex": "0x1"
       }

cmd/evm/testdata/25/exp.json

@@ -27,6 +27,7 @@
         "transactionHash": "0x92ea4a28224d033afb20e0cc2b290d4c7c2d61f6a4800a680e4e19ac962ee941",
         "contractAddress": "0x0000000000000000000000000000000000000000",
         "gasUsed": "0x5208",
+        "effectiveGasPrice": null,
         "blockHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
         "transactionIndex": "0x0"
       }

cmd/evm/testdata/3/exp.json

@@ -28,6 +28,7 @@
         "transactionHash": "0x72fadbef39cd251a437eea619cfeda752271a5faaaa2147df012e112159ffb81",
         "contractAddress": "0x0000000000000000000000000000000000000000",
         "gasUsed": "0x521f",
+        "effectiveGasPrice": null,
         "blockHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
         "transactionIndex": "0x0"
       }