Fix e2e python env in nix shell for linux #2378

Job	Run time
build-linux-post-merge	3m 33s
build-macos-arm64	21m 48s
build-linux-pre-merge	0s
build-linux-workflow-dispatch	0s
build-macos-arm64-workflow-dispatch	0s
build-macos-x86_64-workflow-dispatch	0s
build-macos-x86_64	21m 18s
local-environment-tests	0s
devshell-tests	0s
upload-chain-specs-pre-merge	0s
upload-chain-specs-workflow-dispatch	0s
upload-to-s3-workflow-dispatch	0s
workflow-dispatch-flow-complete	0s
local-environment-tests-alert	0s
pre-merge-checks-complete	0s
upload-chain-specs	1m 13s
deploy-rustdoc	3m 29s
local-environment-tests-post-merge	9m 39s
local-environment-tests-post-merge-alert	7s
deploy-ci-preview	1h 29m 11s
upload-to-s3	16s
post-merge-actions-complete	3s
	2h 30m 37s

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