[5.0 -> main] Test Fix: Avoid deadlock on app_thread #4913

Job	Run time
Discover Versions	7s
Platform Cache / Discover Platforms	3s
Platform Cache / Build Platforms (none)	2s
Run Build Workflow / Build leap (reproducible)	9m 6s
Run Build Workflow / Build leap (ubuntu20)	9m 4s
Run Build Workflow / Build leap (ubuntu22)	8m 36s
NP Tests (ubuntu20)	6m 57s
NP Tests (ubuntu22)	5m 40s
NP Tests (ubuntu20repro)	6m 52s
NP Tests (ubuntu22repro)	5m 45s
Build deb packages (ubuntu20)	13m 7s
LR Tests (ubuntu20)	23m 29s
Build deb packages (ubuntu22)	12m 4s
Tests (ubuntu20)	3m 10s
LR Tests (ubuntu22)	23m 54s
Tests (ubuntu22)	3m 10s
Build deb packages (reproducible)	9m 45s
LR Tests (ubuntu20repro)	24m 0s
Tests (ubuntu20repro)	3m 11s
LR Tests (ubuntu22repro)	23m 46s
Tests (ubuntu22repro)	3m 12s
libtester tests (ubuntu20, build-tree)	7m 50s
libtester tests (ubuntu20, make-dev-install)	8m 49s
libtester tests (ubuntu20, deb-install)	4m 46s
libtester tests (ubuntu22, build-tree)	8m 41s
libtester tests (ubuntu22, make-dev-install)	9m 23s
libtester tests (ubuntu22, deb-install)	4m 37s
All Required Tests Passed	1s
	3h 59m 7s

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