fix: prevent error on null input in appendToResults (#747)

Co-authored-by: Yadhav Jayaraman <[email protected]>

Author: PendaGTP

lib/settings.js

@@ -856,13 +856,15 @@ ${this.results.reduce((x, y) => {
     }
   }
 
-  appendToResults(res) {
-    if (this.nop) {
-      //Remove nulls and undefined from the results
-      const results = res.flat(3).filter(r => r)
-
-      this.results = this.results.concat(results)
+  appendToResults (res) {
+    if (!this.nop || !res) {
+      return
     }
+
+    const input = (!Array.isArray(res) && this.isObject(res)) ? [res] : res
+    const results = input.flat(3).filter(Boolean)
+
+    this.results = this.results.concat(results)
   }
 
   async getReposForTeam(teamslug) {