Adds support to test custom payload branches #581

Job	Run time
python 3.6 macos-12	2m 52s
python 3.11 macos-12	2m 24s
java 8 macos-12	5m 31s
java 21 macos-12	5m 55s
php 5.3 macos-12	4m 36s
php 7.4 macos-12	4m 9s
php 8.3 macos-12	4m 23s
python 3.6 windows-2019	15m 55s
python 3.11 windows-2019	16m 31s
java 8 windows-2019	18m 5s
java 21 windows-2019	15m 1s
php 5.3 windows-2019	16m 6s
php 7.4 windows-2019	13m 40s
php 8.3 windows-2019	15m 12s
python 3.6 ubuntu-20.04	1m 48s
python 3.11 ubuntu-20.04	1m 37s
java 8 ubuntu-20.04	3m 21s
java 21 ubuntu-20.04	3m 19s
php 5.3 ubuntu-20.04	3m 27s
php 7.4 ubuntu-20.04	1m 31s
php 8.3 ubuntu-20.04	1m 29s
windows_meterpreter windows-2019	15m 1s
windows_meterpreter windows-2022	15m 26s
mettle macos-12	6m 41s
mettle ubuntu-20.04	3m 34s
Generate report	47s
	3h 18m 21s

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