stores: fix query param in the

 `getErrataList` method for `ErrataListStore`

src/stores/errataListStore.ts

@@ -80,7 +80,7 @@ class ErrataListStore {
                     page: page,
                     branch: this.filterBranch !== "" ? this.filterBranch : null,
                     type: this.filterType !== "" ? this.filterType : null,
-                    is_discarded: this.filterDiscarded,
+                    state: this.filterDiscarded ? "discarded" : "all",
                     input: input !== "" ? smartSplit(input).join(",") : null
                 },
             });