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

@@ -3,7 +3,7 @@ module github.com/ewohltman/discordgo-mock
 go 1.19
 
 require (
-	github.com/bwmarrin/discordgo v0.27.1
+	github.com/bwmarrin/discordgo v0.28.1
 	github.com/gorilla/mux v1.8.1
 )
 

go.sum

@@ -1,5 +1,5 @@
-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/gorilla/mux v1.8.1 h1:TuBL49tXwgrFYWhqrNgrUNEY92u81SPhu7sTdzQEiWY=
 github.com/gorilla/mux v1.8.1/go.mod h1:AKf9I4AEqPTmMytcMc0KkNouC66V3BtZ4qD5fmWSiMQ=
 github.com/gorilla/websocket v1.4.2 h1:+/TMaTYc4QFitKJxsQ7Yye35DkWvkdLcvGKqM+x0Ufc=