chore: bootstrap independent git workflow

Co-Authored-By: Paperclip <noreply@paperclip.ing>

scripts/release/version.mjs

@@ -0,0 +1,11 @@
+import { readFileSync } from "node:fs";
+
+const cargoToml = readFileSync(new URL("../../Cargo.toml", import.meta.url), "utf8");
+const match = cargoToml.match(/\[workspace\.package\][\s\S]*?version\s*=\s*"([^"]+)"/);
+
+if (!match) {
+  console.error("failed to resolve workspace.package.version from Cargo.toml");
+  process.exit(1);
+}
+
+process.stdout.write(match[1]);