internal/lsp/debug: update hard-coded version for v0.8.1

For golang/go#51659

Change-Id: Ic74d5efbe244b445a6d484210ed2711d372a758c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/392474
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
gopls-CI: kokoro <noreply+kokoro@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Suzy Mueller <suzmue@golang.org>
diff --git a/internal/lsp/debug/info.go b/internal/lsp/debug/info.go
index 35eff4d..ade0258 100644
--- a/internal/lsp/debug/info.go
+++ b/internal/lsp/debug/info.go
@@ -29,7 +29,7 @@
 )
 
 // Version is a manually-updated mechanism for tracking versions.
-const Version = "v0.8.0"
+const Version = "v0.8.1"
 
 // 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.