refactor(e2e): Optimizes yarn install in desktop e2e test pipeline #9127

Job	Run time
build-web	4m 36s
build-web	4m 36s
e2e-test-suite-web (@group_suite, trezor-user-env-unix, 1)	9m 33s
e2e-test-suite-web (@group_suite, trezor-user-env-unix, 1)	6m 51s
e2e-test-suite-web (@group_device-management, trezor-user-env-unix, 1)	6m 21s
e2e-test-suite-web (@group_device-management, trezor-user-env-unix, 1)	6m 21s
e2e-test-suite-web (@group_metadata, trezor-user-env-unix, 1)	14m 18s
e2e-test-suite-web (@group_metadata, trezor-user-env-unix, 1)	14m 18s
e2e-test-suite-web (@group_passphrase, trezor-user-env-unix, 1)	7m 40s
e2e-test-suite-web (@group_passphrase, trezor-user-env-unix, 1)	7m 40s
e2e-test-suite-web (@group_other, trezor-user-env-unix, 1)	3m 34s
e2e-test-suite-web (@group_other, trezor-user-env-unix, 1)	3m 34s
e2e-test-suite-web (@group_wallet, trezor-user-env-unix bitcoin-regtest, 1)	20m 39s
e2e-test-suite-web (@group_wallet, trezor-user-env-unix bitcoin-regtest, 1)	20m 39s
	2h 10m 40s

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