TestTransactionSkipIndexing Flaking

[joshua-kim]

Started seeing this UT flake.

1. https://github.com/ava-labs/subnet-evm/actions/runs/9978573702/job/27575774645?pr=1236
2. https://github.com/ava-labs/subnet-evm/actions/runs/9750717270/job/26910732925

-test.shuffle 1721236697500972230
--- FAIL: TestTransactionSkipIndexing (32.60s)
    test_blockchain.go:1[67](https://github.com/ava-labs/subnet-evm/actions/runs/9978573702/job/27575774645?pr=1236#step:7:68)5: 
        	Error Trace:	/home/runner/work/subnet-evm/subnet-evm/core/test_blockchain.go:1675
        	            				/opt/hostedtoolcache/go/1.21.12/x64/src/runtime/asm_amd64.s:1650
        	Error:      	Not equal: 
        	            	expected: 0x5
        	            	actual  : 0x4
        	Test:       	TestTransactionSkipIndexing
        	Messages:   	expected tail to be 5, found 4
    test_blockchain.go:1672: 
        	Error Trace:	/home/runner/work/subnet-evm/subnet-evm/core/test_blockchain.go:1672
        	            				/home/runner/work/subnet-evm/subnet-evm/core/blockchain_test.go:735
        	            				/home/runner/work/subnet-evm/subnet-evm/core/blockchain_test.go:1331
        	            				/home/runner/work/subnet-evm/subnet-evm/core/blockchain_test.go:731
        	Error:      	Condition never satisfied
        	Test:       	TestTransactionSkipIndexing
        	Messages:   	expected tail to be 5 eventually
From: `0xffffFFFfFFffffffffffffffFfFFFfffFFFfFFfE`
To: `0x000F3df6D732807Ef1319fB7B8bB8522d0Beac02`
Data: `0x0000000000000000000000000000000000000000000000000000000000000000`
Gas: `30000000`
Value `0` wei

|  Pc   |      Op     | Cost |   Stack   |   RStack  |  Refund |
|-------|-------------|------|-----------|-----------|---------|

Output: ``
Consumed gas: `0`
Error: `<nil>`
From: `0x[71](https://github.com/ava-labs/subnet-evm/actions/runs/9978573702/job/27575774645?pr=1236#step:7:72)562b71999873DB5b286dF957af199Ec94617F7`
To: `0x000000000000000000000000000000000000BbBB`
Data: ``
Gas: `479000`
Value `0` wei

|  Pc   |      Op     | Cost |   Stack   |   RStack  |  Refund |
|-------|-------------|------|-----------|-----------|---------|
|    0  |      PUSH1  |    3 |        [] |         0 |
|    2  |       DUP1  |    3 |     [0x0] |         0 |
|    3  |       DUP1  |    3 | [0x0,0x0] |         0 |
|    4  |       DUP1  |    3 |[0x0,0x0,0x0] |         0 |
|    5  |      PUSH2  |    3 |[0x0,0x0,0x0,0x0] |         0 |
|    8  |        GAS  |    2 |[0x0,0x0,0x0,0x0,0xaaaa] |         0 |
|    9  | DELEGATECALL  |  471501 |[0x0,0x0,0x0,0x0,0xaaaa,0x[74](https://github.com/ava-labs/subnet-evm/actions/runs/9978573702/job/27575774645?pr=1236#step:7:75)f07] |         0 |
|    0  |         PC  |    2 |        [] |         0 |
|    1  |         PC  |    2 |     [0x0] |         0 |
|    2  |      SLOAD  |  2100 | [0x0,0x1] |         0 |
|    3  |      SLOAD  |  2100 | [0x0,0x0] |         0 |
|    4  |       STOP  |    0 | [0x0,0x0] |         0 |
|   10  |       STOP  |    0 |     [0x1] |         0 |

Output: ``
Consumed gas: `4321`
Error: `<nil>`
FAIL