test: Simulate ExecuteTxs failing #6118

Job	Run time
branch_name	2s
test / Build Docker Image	1m 37s
test / Run E2E System Tests	3m 35s
test / Run Unit Tests	3m 44s
test / Go Mod Tidy Check	26s
test / Build All Rollkit Binaries	2m 15s
lint / markdown-lint	1m 8s
lint / goreleaser-check	8s
lint / golangci-lint	1m 13s
lint / yamllint	7s
test / Run EVM Execution Tests	2m 13s
proto / buf-check	10s
lint / hadolint / hadolint	6s
test / upgrade-tests	3s
release	0s
	16m 47s

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