Rollup merge of #84540 - 12101111:enable-sanitizers, r=Mark-Simulacrum

Build sanitizers for x86_64-unknown-linux-musl

The support of sanitizers on target `x86_64-unknown-linux-musl` is landed in #84126

Author: jackh726

src/ci/docker/host-x86_64/dist-x86_64-musl/Dockerfile

@@ -38,6 +38,7 @@ ENV HOSTS=x86_64-unknown-linux-musl
 ENV RUST_CONFIGURE_ARGS \
       --musl-root-x86_64=/usr/local/x86_64-linux-musl \
       --enable-extended \
+      --enable-sanitizers \
       --enable-profiler \
       --enable-lld \
       --set target.x86_64-unknown-linux-musl.crt-static=false \