[1.0.3] Fix flaky nodeos_snapshot_diff_test due to a race condition #2575

Job	Run time
Discover Versions	3s
Platform Cache / Discover Platforms	3s
Platform Cache / Build Platforms (none)	3s
Run Build Workflow / Build spring (reproducible)	7m 10s
Run Build Workflow / Build spring (ubuntu22)	8m 19s
Run Build Workflow / Build spring (asserton)	7m 25s
Run Build Workflow / Build spring (asan)	11m 47s
Run Build Workflow / Build spring (ubsan)	9m 45s
Run Build Workflow / Build spring (ubuntu20)	7m 54s
Build deb packages (ubuntu20)	9m 49s
NP Tests (ubuntu20)	8m 19s
Tests (ubuntu20)	3m 22s
Build deb packages (ubuntu22)	12m 28s
LR Tests (ubuntu20)	24m 4s
NP Tests (ubuntu22)	7m 20s
Tests (ubuntu22)	3m 16s
Build deb packages (reproducible)	7m 7s
LR Tests (ubuntu22)	24m 29s
NP Tests (asserton)	7m 23s
Tests (asserton)	3m 12s
LR Tests (asserton)	24m 7s
NP Tests (ubsan)	10m 43s
Tests (ubsan)	5m 0s
LR Tests (ubsan)	26m 25s
NP Tests (ubuntu20repro)	7m 43s
Tests (asan)	6m 19s
LR Tests (ubuntu20repro)	24m 13s
NP Tests (ubuntu22repro)	7m 20s
Tests (ubuntu20repro)	3m 17s
LR Tests (ubuntu22repro)	24m 0s
Tests (ubuntu22repro)	3m 20s
libtester tests (ubuntu22, build-tree)	7m 14s
libtester tests (ubuntu22, make-dev-install)	7m 19s
libtester tests (ubuntu22, deb-install)	4m 9s
All Required Tests Passed	1s
	5h 24m 28s

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