JENKINS-72224 Prevent deadlock when `onConfigurationChange()` is called frequently #1391

Line Coverage: 75.00% (-16.58%), Branch Coverage: 50.00% (-40.91%)

Overall project (difference to reference job)
* Line Coverage: 88.09% (466/529) - Delta: -0.25%
* Branch Coverage: 84.62% (176/208) - Delta: -0.82%
* Complexity Density: 0.38 - Delta: -0.00
* Lines of Code: 529 - Delta: +6
Modified files (difference to reference job)
* Line Coverage: 91.58% (87/95) - Delta: -1.68%
* Branch Coverage: 90.91% (40/44) - Delta: -4.33%
* Complexity Density: 0.39
* Lines of Code: 95
Modified code lines (difference to modified files)
* Line Coverage: 75.00% (6/8) - Delta: -16.58%
* Branch Coverage: 50.00% (1/2) - Delta: -40.91%
* Lines of Code: 8
Indirect changes
* Branch Coverage: 0.00% (0/1)

No active quality gates.

	Module Coverage	Package Coverage	File Coverage	Class Coverage	Method Coverage	Line Coverage	Branch Coverage	Instruction Coverage
🐾 Overall project	100.00% (1/1)	100.00% (1/1)	90.00% (9/10)	91.67% (11/12)	94.95% (94/99)	88.09% (466/529)	84.62% (176/208)	88.29% (1817/2058)
📈 Overall project (difference to reference job)	+0.00%	+0.00%	+0.00%	+0.00%	+0.05% ⬆️	-0.25% ⬇️	-0.82% ⬇️	-0.22% ⬇️
🐾 Modified files	100.00% (1/1)	100.00% (1/1)	100.00% (1/1)	100.00% (1/1)	93.33% (14/15)	91.58% (87/95)	90.91% (40/44)	90.53% (306/338)
📈 Modified files (difference to reference job)	n/a	n/a	n/a	n/a	n/a	-1.68% ⬇️	-4.33% ⬇️	n/a
🐾 Modified code lines	100.00% (1/1)	100.00% (1/1)	100.00% (1/1)	n/a	n/a	75.00% (6/8)	50.00% (1/2)	n/a
📈 Modified code lines (difference to modified files)	n/a	n/a	n/a	n/a	n/a	-16.58% ⬇️	-40.91% ⬇️	n/a
🐾 Indirect changes	0.00% (0/1)	0.00% (0/1)	0.00% (0/1)	n/a	n/a	n/a	0.00% (0/1)	n/a