glide: update pinned btcwallet version to include latest bug fix

This commit updates the version of btcwallet that and is pinned against
to point to a version that includes a bug fix that was noticed in the
latest upstream PR’s we’ve included. The culprit bug would attempt to
create a write transaction inside of a greater read transaction which
would cause boltdb to block indefinitely internally. roasbeef’s fork of
btcwallet has been updated to include this fix.

glide.yaml

@@ -33,7 +33,7 @@ import:
   - hdkeychain
   - txsort
 - package: github.com/roasbeef/btcwallet
-  version: 8e06194d49fc1cef9b86dd87c029f8afb37423a0
+  version: 689fccd15fdf3c01cd35734ffe12409bc35a343b
   subpackages:
   - chain
   - waddrmgr