internal/lsp/debug: update hard-coded version for v0.8.3

For golang/go#52213

Change-Id: I6fe0608d896bd84a4fd510f009ed961d457472a5
Reviewed-on: https://go-review.googlesource.com/c/tools/+/398815
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
gopls-CI: kokoro <noreply+kokoro@google.com>
Reviewed-by: Suzy Mueller <suzmue@golang.org>
Trust: Suzy Mueller <suzmue@golang.org>

internal/lsp/debug/info.go

@@ -29,7 +29,7 @@ const (
 )
 
 // Version is a manually-updated mechanism for tracking versions.
-const Version = "v0.8.2"
+const Version = "v0.8.3"
 
 // ServerVersion is the format used by gopls to report its version to the
 // client. This format is structured so that the client can parse it easily.