build

enable thinLTO #514

Job	Run time
spellcheck	4s
linux-glibc-debian-testing-llvm	6m 24s
reuse-check	11s
shellcheck	7s
linux-glibc-debian-bookworm-llvm	6m 28s
linux-glibc-debian-sid-gcc-riscv64	3m 20s
linux-glibc-debian-bookworm-gcc	5m 39s
linux-glibc-debian-sid-llvm-riscv64	3m 52s
linux-glibc-debian-testing-gcc	5m 31s
linux-musl-alpine-gcc	3m 10s
linux-musl-alpine-llvm	4m 4s
linux-musl-debian-bookworm-gcc	5m 10s
linux-musl-debian-bookworm-llvm	6m 23s
linux-musl-debian-sid-gcc-riscv64	3m 50s
linux-musl-debian-sid-llvm-riscv64	4m 16s
linux-musl-debian-testing-gcc	5m 3s
linux-musl-debian-testing-llvm	6m 14s
linux-musl-from-mac	7m 12s
mac-clang	10m 25s
win-llvm	10m 13s
win-gcc	6m 21s
mac-llvm	10m 3s
	1h 54m 0s

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