internal/lsp/debug: update hard-coded version for v0.9.1

For golang/go#53823

Change-Id: I25b114561f408322a99a63eb90929f4249127381
Reviewed-on: https://go-review.googlesource.com/c/tools/+/417119
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Peter Weinberger <pjw@google.com>
gopls-CI: kokoro <noreply+kokoro@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
diff --git a/internal/lsp/debug/info.go b/internal/lsp/debug/info.go
index da4a6c3..92e2571 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 = "v0.9.0"
+const Version = "v0.9.1"
 
 // 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.