Fix connection leak by request timers not cancelled in time #1131

Job	Run time
Formatting Check	1m 39s
Run unit tests	16m 11s
Build the Wireshark dissector (ubuntu-latest)	43s
Lint	22m 18s
Build CPP Client on Windows x64	18m 49s
Build CPP Client on Windows x86	16m 0s
Build CPP Client on macOS with static dependencies	1m 39s
Build Alpine x86_64	38s
Build RPM x86_64	57s
Build with the C++20 standard	5m 52s
Build Deb x86_64	28s
Check Completion	0s
Run unit tests	16m 11s
Build RPM x86_64	18m 29s
Build Alpine x86_64	29m 54s
Build Deb x86_64	20m 6s
Build CPP Client on Windows x86	16m 0s
Build CPP Client on macOS with static dependencies	1m 39s
Build CPP Client on Windows x64	18m 49s
Build with the C++20 standard	5m 52s
Formatting Check	1m 39s
Lint	22m 18s
Build the Wireshark dissector (ubuntu-latest)	43s
Check Completion	2s
	3h 56m 56s

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