Add test for adding new collector after completed initial allocation #6181

Job	Run time
End-to-end tests (1.23, e2e)	10m 23s
End-to-end tests (1.23, e2e)	10m 23s
End-to-end tests (1.23, e2e-instrumentation)	11m 49s
End-to-end tests (1.23, e2e-instrumentation)	11m 49s
End-to-end tests (1.23, e2e-upgrade)	11m 33s
End-to-end tests (1.23, e2e-upgrade)	11m 33s
End-to-end tests (1.23, e2e-prometheuscr)	9m 6s
End-to-end tests (1.23, e2e-prometheuscr)	9m 6s
End-to-end tests (1.23, e2e-autoscale)	9m 48s
End-to-end tests (1.23, e2e-autoscale)	9m 48s
End-to-end tests (1.23, e2e-multi-instrumentation)	9m 2s
End-to-end tests (1.23, e2e-multi-instrumentation)	9m 2s
End-to-end tests (1.23, e2e-pdb)	8m 26s
End-to-end tests (1.23, e2e-pdb)	7m 57s
End-to-end tests (1.23, e2e-opampbridge)	7m 57s
End-to-end tests (1.23, e2e-opampbridge)	7m 57s
End-to-end tests (1.29, e2e)	10m 17s
End-to-end tests (1.29, e2e)	10m 17s
End-to-end tests (1.29, e2e-instrumentation)	9m 35s
End-to-end tests (1.29, e2e-instrumentation)	9m 35s
End-to-end tests (1.29, e2e-upgrade)	8m 24s
End-to-end tests (1.29, e2e-upgrade)	8m 24s
End-to-end tests (1.29, e2e-prometheuscr)	8m 47s
End-to-end tests (1.29, e2e-prometheuscr)	8m 47s
End-to-end tests (1.29, e2e-autoscale)	8m 3s
End-to-end tests (1.29, e2e-autoscale)	8m 3s
End-to-end tests (1.29, e2e-multi-instrumentation)	9m 2s
End-to-end tests (1.29, e2e-multi-instrumentation)	9m 2s
End-to-end tests (1.29, e2e-pdb)	7m 56s
End-to-end tests (1.29, e2e-pdb)	7m 56s
End-to-end tests (1.29, e2e-opampbridge)	7m 52s
End-to-end tests (1.29, e2e-opampbridge)	7m 52s
e2e-tests-check	1s
e2e-tests-check	1s
	4h 55m 33s

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