node_modules: update (#349)

Co-authored-by: dawidd6 <9713907+dawidd6@users.noreply.github.com>

node_modules/nodemailer/dist/esm/dkim/index.js

@@ -128,8 +128,9 @@ class DKIMSigner {
     }
     createWriteCache() {
         this.output.usingCache = true;
-        // pipe remainings to cache file
-        this.cache = fs.createWriteStream(this.cachePath);
+        // pipe remainings to cache file. It holds the message body and cacheDir is often a
+        // shared directory such as /tmp, so nobody but the owner gets to read it
+        this.cache = fs.createWriteStream(this.cachePath, { mode: 0o600 });
         this.cache.once('error', err => {
             // drain input
             this.relaxedBody.unpipe(this.cache);