ci: print generated files not up-to-date #21

Job	Run time
lint (spirv-builder)	5m 30s
lint (cargo-gpu)	6m 53s
test (ubuntu-24.04, cargo-gpu)	7m 23s
xtask test & lint	2m 4s
test (ubuntu-24.04, spirv-builder)	5m 59s
test (macOS-latest, cargo-gpu)	6m 35s
test (macOS-latest, spirv-builder)	8m 42s
test (windows-2022, cargo-gpu)	12m 25s
test (windows-2022, spirv-builder)	8m 52s
test_success	3s
	1h 4m 26s

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