biblioteq: update to 2026.03.15. #67952

Job	Run time
Lint templates	37s
Build packages (aarch64, x86_64, glibc, linux/amd64, 0)	8m 0s
Build packages (armv7l, x86_64, glibc, linux/amd64, 0)	7m 7s
Build packages (armv6l-musl, x86_64-musl, musl, linux/amd64, 0)	6m 57s
Build packages (i686, i686, glibc, linux/386, 1)	6m 17s
Build packages (x86_64-musl, x86_64-musl, musl, linux/amd64, 1)	6m 28s
Build packages (x86_64, x86_64, glibc, linux/amd64, 1)	7m 30s
Build packages (aarch64-musl, x86_64-musl, musl, linux/amd64, 0)	8m 22s
	51m 18s

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