feat: update slack-go dependency

vendor/github.com/slack-go/slack/socketmode/client.go

@@ -0,0 +1,63 @@
+package socketmode
+
+import (
+	"encoding/json"
+	"time"
+
+	"github.com/slack-go/slack"
+
+	"github.com/gorilla/websocket"
+)
+
+type ConnectedEvent struct {
+	ConnectionCount int // 1 = first time, 2 = second time
+	Info            *slack.SocketModeConnection
+}
+
+type DebugInfo struct {
+	// Host is the name of the host name on the Slack end, that can be something like `applink-7fc4fdbb64-4x5xq`
+	Host string `json:"host"`
+
+	// `hello` type only
+	BuildNumber               int `json:"build_number"`
+	ApproximateConnectionTime int `json:"approximate_connection_time"`
+}
+
+type ConnectionInfo struct {
+	AppID string `json:"app_id"`
+}
+
+type SocketModeMessagePayload struct {
+	Event json.RawMessage `json:"event"`
+}
+
+// Client is a Socket Mode client that allows programs to use [Events API](https://api.slack.com/events-api)
+// and [interactive components](https://api.slack.com/interactivity) over WebSocket.
+// Please see [Intro to Socket Mode](https://api.slack.com/apis/connections/socket) for more information
+// on Socket Mode.
+//
+// The implementation is highly inspired by https://www.npmjs.com/package/@slack/socket-mode,
+// but the structure and the design has been adapted as much as possible to that of our RTM client for consistency
+// within the library.
+//
+// You can instantiate the socket mode client with
+// Client's New() and call Run() to start it. Please see examples/socketmode for the usage.
+type Client struct {
+	// Client is the main API, embedded
+	slack.Client
+
+	// maxPingInterval is the maximum duration elapsed after the last WebSocket PING sent from Slack
+	// until Client considers the WebSocket connection is dead and needs to be reopened.
+	maxPingInterval time.Duration
+
+	// Connection life-cycle
+	Events              chan Event
+	socketModeResponses chan *Response
+
+	// dialer is a gorilla/websocket Dialer. If nil, use the default
+	// Dialer.
+	dialer *websocket.Dialer
+
+	debug bool
+	log   ilogger
+}