Refactor some X11 code around #251

Job	Run time
python 3.6 macos-12	2m 37s
python 3.11 macos-12	2m 16s
java 8 macos-12	5m 27s
java 21 macos-12	5m 10s
php 5.3 macos-12	5m 52s
php 7.4 macos-12	20m 54s
php 8.3 macos-12	5m 7s
python 3.6 windows-2019	15m 20s
python 3.11 windows-2019	12m 51s
java 8 windows-2019	13m 28s
java 21 windows-2019	13m 50s
php 5.3 windows-2019	15m 23s
php 7.4 windows-2019	12m 30s
php 8.3 windows-2019	14m 18s
python 3.6 ubuntu-20.04	3m 42s
python 3.11 ubuntu-20.04	3m 17s
java 8 ubuntu-20.04	3m 14s
java 21 ubuntu-20.04	3m 36s
php 5.3 ubuntu-20.04	3m 16s
php 7.4 ubuntu-20.04	3m 27s
php 8.3 ubuntu-20.04	3m 14s
windows_meterpreter windows-2019	14m 17s
windows_meterpreter windows-2022	14m 37s
mettle macos-12	4m 37s
mettle ubuntu-20.04	3m 38s
Generate report	2m 30s
	3h 28m 28s

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