⬆️ Update vendor

vendor/github.com/google/btree/btree.go

@@ -796,7 +796,7 @@ func (t *BTree) DescendLessOrEqual(pivot Item, iterator ItemIterator) {
 }
 
 // DescendGreaterThan calls the iterator for every value in the tree within
-// the range [last, pivot), until iterator returns false.
+// the range (pivot, last], until iterator returns false.
 func (t *BTree) DescendGreaterThan(pivot Item, iterator ItemIterator) {
 	if t.root == nil {
 		return

vendor/github.com/google/btree/go.mod

@@ -1,17 +0,0 @@
-// Copyright 2014 Google Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-module github.com/google/btree
-
-go 1.12