[build] [cli] Some esbuild import mixup.

Work around it by setting the problematic import as external.

esbuild-cli.mjs

@@ -33,6 +33,8 @@ var nodecli = esbuild
     outfile: "dist-cli/cli.cjs",
     ...sourcemap,
     minify,
+    // There is some ESM/CommonJS incompatibility quirk in this pkg
+    external: ["fflate-unzip"]
     // watch: watch(cliEntry),
   })
   .then(() => {