internal/lsp/debug: update version number for 0.4.3

Change-Id: Iaab932d966f4fa4c4d9184ff2c22d0603a0b97bd
Reviewed-on: https://go-review.googlesource.com/c/tools/+/241517
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
diff --git a/internal/lsp/debug/info.go b/internal/lsp/debug/info.go
index 3531353..1cadfdc 100644
--- a/internal/lsp/debug/info.go
+++ b/internal/lsp/debug/info.go
@@ -23,7 +23,7 @@
 )
 
 // Version is a manually-updated mechanism for tracking versions.
-var Version = "0.4.2"
+var Version = "0.4.3"
 
 // PrintServerInfo writes HTML debug info to w for the Instance.
 func (i *Instance) PrintServerInfo(ctx context.Context, w io.Writer) {