gopls: update go.mod for v0.4.3

Change-Id: Ie8c4cefcb93fa4a7e47e7b0b1d0c05b21761fd86
Reviewed-on: https://go-review.googlesource.com/c/tools/+/241518
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>

gopls/go.mod

diff --git a/gopls/go.mod b/gopls/go.mod
index 7a1abdc..5307679 100644
--- a/gopls/go.mod
+++ b/gopls/go.mod
@@ -4,7 +4,7 @@
 
 require (
 	github.com/sergi/go-diff v1.1.0
-	golang.org/x/tools v0.0.0-20200701133321-6ddc6be4d35f
+	golang.org/x/tools v0.0.0-20200708171055-22d49bd2bae0
 	honnef.co/go/tools v0.0.1-2020.1.4
 	mvdan.cc/xurls/v2 v2.2.0
 )