fix: support dynamic install agent multi-times with different agent directory #1931

Job	Run time
build agent and cache	1m 19s
build agent and cache	1m 19s
download midwares and cache	13s
download midwares and cache	13s
set-execution-conditions	11s
set-execution-conditions	11s
Test for spring (1.5.0.RELEASE, Edgware.SR2, 1.5.0.RELEASE)	8s
Test for spring (1.5.0.RELEASE, Edgware.SR2, 1.5.0.RELEASE)	14m 14s
Test for spring (2.0.2.RELEASE, Finchley.RELEASE, 4.1.3, 2.0.0.RELEASE)	12s
Test for spring (2.0.2.RELEASE, Finchley.RELEASE, 4.1.3, 2.0.0.RELEASE)	17m 16s
Test for spring (2.1.0.RELEASE, Greenwich.RELEASE, 4.2.6, 2.1.0.RELEASE)	11s
Test for spring (2.1.0.RELEASE, Greenwich.RELEASE, 4.2.6, 2.1.0.RELEASE)	16m 27s
Test for spring (2.2.0.RELEASE, Hoxton.RELEASE, 4.3.6, 2.2.0.RELEASE)	7s
Test for spring (2.2.0.RELEASE, Hoxton.RELEASE, 4.3.6, 2.2.0.RELEASE)	16m 34s
Test for spring (2.3.0.RELEASE, Hoxton.RELEASE, 4.4.1, 2.2.8.RELEASE)	12s
Test for spring (2.3.0.RELEASE, Hoxton.RELEASE, 4.4.1, 2.2.8.RELEASE)	16m 35s
Test for spring (2.4.0, 2020.0.0, 4.5.6, 2021.0.1.0)	7s
Test for spring (2.4.0, 2020.0.0, 4.5.6, 2021.0.1.0)	13m 22s
Test for spring (2.6.2, 2021.0.0, 4.5.10, 2021.1)	15s
Test for spring (2.6.2, 2021.0.0, 4.5.10, 2021.1)	13m 7s
Test for spring (2.7.2, 2021.0.3, 4.5.13)	7s
Test for spring (2.7.2, 2021.0.3, 4.5.13)	13m 28s
	2h 5m 48s

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