mod : Replace for OSV GO-2020-0017 JWT

The github.com/dgrijalva/jwt-go is no longer maintained
has this CVE https://github.com/advisories/GHSA-w73w-5m7g-f7qc

But it is being used by https://github.com/etcd-io/etcd/issues/13254
which `lnd` uses.

The https://github.com/golang-jwt/jwt/releases/tag/v3.2.1 is a fork of
the same version which was 3.2.0 with the security fix.

docs/release-notes/release-notes-0.14.0.md

@@ -230,6 +230,8 @@ you.
 
 * [Integration tests save embedded etcd logs to help debugging flakes](https://github.com/lightningnetwork/lnd/pull/5702)
 
+* [Replace reference to JWT library with CVE](https://github.com/lightningnetwork/lnd/pull/5737)
+
 * [Fixed restore backup file test flake with bitcoind](https://github.com/lightningnetwork/lnd/pull/5637).
 
 * [Timing fix in AMP itest](https://github.com/lightningnetwork/lnd/pull/5725)