Also provide musl libc builds of Velocity natives

Reference: PaperMC/Paper#11367

native/build-support/alpine.Dockerfile

@@ -0,0 +1,9 @@
+
+FROM amazoncorretto:17.0.12-alpine3.18
+
+# Install required dependencies
+RUN apk add --no-cache bash alpine-sdk cmake openssl-dev openssl
+
+# Create a non-root user
+RUN adduser -D user
+USER user