fix: configure musl C++ toolchain for DuckDB build #118

Job	Run time
plan	17s
build-ui	48s
build-local-artifacts (x86_64-pc-windows-msvc)	15m 5s
build-local-artifacts (aarch64-unknown-linux-gnu)	8m 46s
build-local-artifacts (x86_64-apple-darwin)	14m 13s
build-local-artifacts (x86_64-unknown-linux-musl)	10m 19s
build-local-artifacts (x86_64-unknown-linux-gnu)	10m 33s
build-local-artifacts (aarch64-apple-darwin)	9m 17s
build-global-artifacts	0s
host	0s
announce	0s
	1h 9m 18s

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