fix(npm): decrypt tokens < 50 chars

Closes #3184

lib/config/massage.js

@@ -22,7 +22,7 @@ function massageConfig(config) {
   for (const [key, val] of Object.entries(config)) {
     if (allowedStrings.includes(key) && is.string(val)) {
       massagedConfig[key] = [val];
-    } else if (key === 'npmToken' && val && val.length < 30) {
+    } else if (key === 'npmToken' && val && val.length < 50) {
       massagedConfig.npmrc = `//registry.npmjs.org/:_authToken=${val}\n`;
       delete massagedConfig.npmToken;
     } else if (is.array(val)) {