test: omit unnecessary reassignment (#2703)

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## Overview

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The new version of Go (after Go 1.22) has been optimized, and variables
do not need to be reassigned.

Our project use Go 1.24:


```shell
Directory: apps/evm/single, Go version: 1.24.6
Directory: apps/grpc/single, Go version: 1.24.6
Directory: apps/testapp, Go version: 1.24.6
Directory: core, Go version: 1.24.1
Directory: da, Go version: 1.24.1
Directory: execution/evm, Go version: 1.24.6
Directory: execution/evm/test, Go version: 1.24.6
Directory: execution/grpc, Go version: 1.24.2
Directory: sequencers/single, Go version: 1.24.2
Directory: test/docker-e2e, Go version: 1.24.6
Directory: test/e2e, Go version: 1.24.6
```

For more info:
https://tip.golang.org/wiki/LoopvarExperiment#does-this-mean-i-dont-have-to-write-x--x-in-my-loops-anymore

Signed-off-by: juejinyuxitu <juejinyuxitu@outlook.com>

Author: juejinyuxitu

block/internal/submitting/submitter_test.go

@@ -57,8 +57,6 @@ func TestSubmitter_IsHeightDAIncluded(t *testing.T) {
 	}
 
 	for name, spec := range specs {
-		name := name
-		spec := spec
 		t.Run(name, func(t *testing.T) {
 			included, err := s.IsHeightDAIncluded(spec.height, spec.header, spec.data)
 			if spec.expErr {