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Test the runner images in a dedicated `runner-images` PR check #5314

Job	Run time
Rust analysis (ubuntu-26.04, default)	2m 4s
Rust analysis (ubuntu-26.04, nightly-latest)	1m 58s
Rust analysis (ubuntu-26.04, linked)	2m 6s
Rust analysis (ubuntu-26.04, stable-v2.22.1)	1m 18s
Rust analysis (ubuntu-24.04, stable-v2.20.7)	1m 0s
	8m 26s