Pin concurrent-ruby version #193

Job	Run time
build / Compile Java Meterpreter	0s
build / python 3.6 macos-13	3m 22s
build / python 3.11 macos-13	2m 34s
build / java 8 macos-13	3m 7s
build / java 21 macos-13	4m 56s
build / php 5.3 macos-13	3m 21s
build / php 7.4 macos-13	3m 36s
build / php 8.3 macos-13	3m 22s
build / python 3.6 windows-2019	6m 24s
build / python 3.11 windows-2019	5m 4s
build / java 8 windows-2019	5m 13s
build / java 21 windows-2019	4m 45s
build / php 5.3 windows-2019	9m 16s
build / php 7.4 windows-2019	7m 1s
build / php 8.3 windows-2019	5m 52s
build / python 3.6 ubuntu-20.04	1m 58s
build / python 3.11 ubuntu-20.04	1m 39s
build / java 8 ubuntu-20.04	1m 50s
build / java 21 ubuntu-20.04	1m 33s
build / php 5.3 ubuntu-20.04	1m 42s
build / php 7.4 ubuntu-20.04	1m 42s
build / php 8.3 ubuntu-20.04	1m 42s
build / windows_meterpreter windows-2019	14m 55s
build / windows_meterpreter windows-2022	15m 40s
build / mettle macos-13	5m 58s
build / mettle ubuntu-20.04	3m 41s
build / Generate report	2m 44s
	2h 2m 57s

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