update pinned build to clang 18.1.8 #1118

Job	Run time
Discover Versions	3s
Platform Cache / Discover Platforms	5s
Platform Cache / Build Platforms (none)	2s
Run Build Workflow / Build spring (reproducible)	6m 46s
Run Build Workflow / Build spring (asan)	10m 23s
Run Build Workflow / Build spring (ubuntu22)	7m 13s
Run Build Workflow / Build spring (asserton)	7m 59s
Run Build Workflow / Build spring (ubuntu20)	7m 1s
Run Build Workflow / Build spring (ubsan)	9m 7s
LR Tests (ubuntu20)	24m 12s
NP Tests (ubuntu20)	7m 18s
LR Tests (ubuntu22)	24m 15s
Build deb packages (ubuntu20)	10m 53s
NP Tests (ubuntu22)	6m 25s
LR Tests (asserton)	24m 18s
Build deb packages (ubuntu22)	10m 48s
Tests (ubuntu20)	3m 50s
NP Tests (asserton)	6m 33s
LR Tests (ubsan)	26m 25s
Build deb packages (reproducible)	7m 19s
Tests (ubuntu22)	3m 52s
NP Tests (ubsan)	8m 46s
LR Tests (ubuntu20repro)	24m 9s
Tests (asserton)	3m 30s
NP Tests (ubuntu20repro)	7m 0s
LR Tests (ubuntu22repro)	24m 6s
Tests (ubsan)	5m 3s
NP Tests (ubuntu22repro)	6m 24s
Tests (asan)	7m 9s
Tests (ubuntu20repro)	3m 44s
Tests (ubuntu22repro)	3m 44s
libtester tests (ubuntu22, build-tree)	7m 18s
libtester tests (ubuntu22, make-dev-install)	7m 24s
libtester tests (ubuntu22, deb-install)	4m 5s
All Required Tests Passed	1s
	5h 17m 10s

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