fix(protect): catch and log unexpected errors

Otherwise we'll get "UnhandledPromiseRejectionWarning" warnings from
NodeJS which warns us that their behaviour will change to non-zero exit
codes in the future. We don't want that and we shouldn't block pipelines
due to failures on our end.

packages/snyk-protect/bin/snyk-protect

@@ -1,2 +1,7 @@
 #!/usr/bin/env node
-require('../dist/index.js').protect();
+require('../dist/index.js')
+  .protect()
+  .catch((error) => {
+    // don't block pipelines on unexpected errors
+    console.error(error);
+  });