Replace appengine log with logrus + Stackdriver formatter

From https://stackoverflow.com/questions/67554711/replacement-for-go-app-engine-google-golang-org-appengine-log-package-with-lo:

import (
        log "github.com/sirupsen/logrus"
        stackdriver "github.com/TV4/logrus-stackdriver-formatter" // adapter
)

log.SetFormatter(stackdriver.NewFormatter())
log.SetLevel(log.DebugLevel) // default is Info

log.Debug("This is debug")
log.Info("This is info")
log.Error("This is error")
log.Warn("This is warn")

bsiegert / BulkTracker

Replace appengine log with logrus + Stackdriver formatter #24