internal/lsp: update version for gopls/v0.7.0-pre.1

Change-Id: I7e2e3de37a24574ac521e2fabfd4b323863598c3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/324429
Trust: Rebecca Stambler <rstambler@golang.org>
Trust: Peter Weinberger <pjw@google.com>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
gopls-CI: kokoro <noreply+kokoro@google.com>
Reviewed-by: Peter Weinberger <pjw@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
diff --git a/internal/lsp/debug/info.go b/internal/lsp/debug/info.go
index 3533b36..be4f926 100644
--- a/internal/lsp/debug/info.go
+++ b/internal/lsp/debug/info.go
@@ -26,7 +26,7 @@
 )
 
 // Version is a manually-updated mechanism for tracking versions.
-const Version = "master"
+const Version = "v0.7.0"
 
 // 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.