Fix lint issues

main.go

 package main
 
 import (
-	"math/rand"
-	"time"
-
 	"github.com/9seconds/mtg/v2/internal/cli"
 	"github.com/alecthomas/kong"
 )
 
 func main() {
-	rand.Seed(time.Now().UTC().UnixNano())
-
 	cli := &cli.CLI{}
 	ctx := kong.Parse(cli, kong.Vars{
 		"version": getVersion(),

mtglib/internal/faketls/conn_test.go

 	suite.connMock.On("Write", mock.Anything).Return(0, nil)
 
 	dataToRec := make([]byte, record.TLSMaxRecordSize*2)
-	rand.Read(dataToRec)
+	rand.Read(dataToRec) //nolint: staticcheck
 
 	n, err := suite.c.Write(dataToRec)
 	suite.NoError(err)

mtglib/internal/faketls/welcome_test.go

 		SessionID:   make([]byte, 32),
 	}
 
-	_, err := rand.Read(suite.h.SessionID)
+	_, err := rand.Read(suite.h.SessionID) //nolint: staticcheck
 	suite.NoError(err)
 
-	_, err = rand.Read(suite.h.Random[:])
+	_, err = rand.Read(suite.h.Random[:]) //nolint: staticcheck
 	suite.NoError(err)
 
 	suite.buf = &bytes.Buffer{}