chore: set default local-env image to v1.5.0 #2245

Job	Run time
build-linux-post-merge	0s
build-linux-workflow-dispatch	0s
build-macos-arm64	0s
build-linux-pre-merge	2m 47s
build-macos-arm64-workflow-dispatch	0s
build-macos-x86_64	0s
build-macos-x86_64-workflow-dispatch	0s
deploy-rustdoc	0s
local-environment-tests-post-merge	0s
upload-chain-specs	0s
upload-chain-specs-workflow-dispatch	0s
upload-to-s3-workflow-dispatch	0s
upload-to-s3	0s
local-environment-tests-post-merge-alert	0s
workflow-dispatch-flow-complete	0s
deploy-ci-preview	0s
post-merge-actions-complete	0s
upload-chain-specs-pre-merge	21s
local-environment-tests	6m 7s
devshell-tests (nixos)	20s
devshell-tests (macos)	1m 3s
local-environment-tests-alert	10s
pre-merge-checks-complete	2s
	10m 50s

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