build: update development and cross-compilation tools

Cross.toml

@@ -0,0 +1,3 @@
+[target.x86_64-unknown-freebsd]
+image.name = "ghcr.io/cross-rs/x86_64-unknown-freebsd:local"
+image.toolchain = ["linux/arm64=aarch64-unknown-linux-gnu"]

check.sh

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+targets=(
+  aarch64-apple-darwin
+  x86_64-unknown-linux-gnu
+  x86_64-unknown-linux-musl
+  aarch64-unknown-linux-musl
+  x86_64-unknown-freebsd
+)
+
+for target in "${targets[@]}"; do
+  echo
+  echo "==> Checking ${target}"
+  cargo check \
+    --workspace \
+    --all-targets \
+    --target "${target}"
+done