build(deps): bump github.com/bwmarrin/discordgo from 0.27.1 to 0.28.1

Bumps [github.com/bwmarrin/discordgo](https://github.com/bwmarrin/discordgo) from 0.27.1 to 0.28.1.
- [Release notes](https://github.com/bwmarrin/discordgo/releases)
- [Commits](bwmarrin/discordgo@v0.27.1...v0.28.1)

---
updated-dependencies:
- dependency-name: github.com/bwmarrin/discordgo
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

go.mod

@@ -6,7 +6,7 @@ require (
 	github.com/BurntSushi/xgbutil v0.0.0-20190907113008-ad855c713046
 	github.com/PuerkitoBio/goquery v1.9.1
 	github.com/brandondube/tai v0.1.0
-	github.com/bwmarrin/discordgo v0.27.1
+	github.com/bwmarrin/discordgo v0.28.1
 	github.com/fsnotify/fsnotify v1.7.0
 	github.com/godbus/dbus v4.1.0+incompatible
 	github.com/google/go-cmp v0.6.0

go.sum

@@ -19,8 +19,8 @@ github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24
 github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
 github.com/brandondube/tai v0.1.0 h1:psVhcG48XNq1LtQtvz6C5+6JU+n1UFjE9XeYLLDJ/cs=
 github.com/brandondube/tai v0.1.0/go.mod h1:Zx9tLMhTfJhSns4czs9WIs8wPR5oT2OuJNDhGR/GHgw=
-github.com/bwmarrin/discordgo v0.27.1 h1:ib9AIc/dom1E/fSIulrBwnez0CToJE113ZGt4HoliGY=
-github.com/bwmarrin/discordgo v0.27.1/go.mod h1:NJZpH+1AfhIcyQsPeuBKsUtYrRnjkyu0kIVMCHkZtRY=
+github.com/bwmarrin/discordgo v0.28.1 h1:gXsuo2GBO7NbR6uqmrrBDplPUx2T3nzu775q/Rd1aG4=
+github.com/bwmarrin/discordgo v0.28.1/go.mod h1:NJZpH+1AfhIcyQsPeuBKsUtYrRnjkyu0kIVMCHkZtRY=
 github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=