build(deps): bump github.com/osrg/gobgp/v3 from 3.20.0 to 3.21.0

Bumps [github.com/osrg/gobgp/v3](https://github.com/osrg/gobgp) from 3.20.0 to 3.21.0.
- [Release notes](https://github.com/osrg/gobgp/releases)
- [Changelog](https://github.com/osrg/gobgp/blob/master/.goreleaser.yml)
- [Commits](osrg/gobgp@v3.20.0...v3.21.0)

---
updated-dependencies:
- dependency-name: github.com/osrg/gobgp/v3
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

go.mod

@@ -8,7 +8,7 @@ require (
 	github.com/moby/ipvs v1.1.0
 	github.com/onsi/ginkgo v1.16.5
 	github.com/onsi/gomega v1.30.0
-	github.com/osrg/gobgp/v3 v3.20.0
+	github.com/osrg/gobgp/v3 v3.21.0
 	github.com/prometheus/client_golang v1.17.0
 	github.com/spf13/pflag v1.0.5
 	github.com/stretchr/testify v1.8.4

go.sum

@@ -254,8 +254,8 @@ github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8
 github.com/opencontainers/go-digest v1.0.0/go.mod h1:0JzlMkj0TRzQZfJkVvzbP0HBR3IKzErnv2BNG4W4MAM=
 github.com/opencontainers/image-spec v1.0.2 h1:9yCKha/T5XdGtO0q9Q9a6T5NUCsTn/DrBg0D7ufOcFM=
 github.com/opencontainers/image-spec v1.0.2/go.mod h1:BtxoFyWECRxE4U/7sNtV5W15zMzWCbyJoFRP3s7yZA0=
-github.com/osrg/gobgp/v3 v3.20.0 h1:U0dhaAo0QHscQQ+vTrnX2Rak9vaKnJ3aQDM5mAEeIEw=
-github.com/osrg/gobgp/v3 v3.20.0/go.mod h1:4fbscYpsCk14EO16nTWAdJyErO4MbAZ2zLJmsmeXu/k=
+github.com/osrg/gobgp/v3 v3.21.0 h1:OCjDIz2duA36tLoQElm8S2ZfxClPqcM9B4SfIlfYQTI=
+github.com/osrg/gobgp/v3 v3.21.0/go.mod h1:4fbscYpsCk14EO16nTWAdJyErO4MbAZ2zLJmsmeXu/k=
 github.com/pelletier/go-toml/v2 v2.1.0 h1:FnwAJ4oYMvbT/34k9zzHuZNrhlz48GB3/s6at6/MHO4=
 github.com/pelletier/go-toml/v2 v2.1.0/go.mod h1:tJU2Z3ZkXwnxa4DPO899bsyIoywizdUvyaeZurnPPDc=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=