Update Dependencies (#486)

* github.com/Microsoft/go-winio

* github.com/bradrydzewski/togo

* github.com/containerd/containerd

* github.com/docker/cli

* github.com/docker/docker

* github.com/docker/docker-credential-helpers

* github.com/franela/goblin

* github.com/google/go-github/v39

* github.com/joho/godotenv

* github.com/lib/pq

* github.com/moby/moby

* github.com/prometheus/client_golang

* github.com/tevino/abool

* github.com/woodpecker-ci/togo

* github.com/xanzy/go-gitlab

* github.com/xeipuuv/gojsonschema

* github.com/mattn/go-sqlite3

vendor/github.com/hashicorp/go-cleanhttp/cleanhttp.go

@@ -32,6 +32,7 @@ func DefaultPooledTransport() *http.Transport {
 		IdleConnTimeout:       90 * time.Second,
 		TLSHandshakeTimeout:   10 * time.Second,
 		ExpectContinueTimeout: 1 * time.Second,
+		ForceAttemptHTTP2:     true,
 		MaxIdleConnsPerHost:   runtime.GOMAXPROCS(0) + 1,
 	}
 	return transport

vendor/github.com/hashicorp/go-cleanhttp/go.mod

@@ -1 +1,3 @@
 module github.com/hashicorp/go-cleanhttp
+
+go 1.13

vendor/github.com/hashicorp/go-retryablehttp/client.go

@@ -471,7 +471,7 @@ func baseRetryPolicy(resp *http.Response, err error) (bool, error) {
 // seconds the server states it may be ready to process more requests from this client.
 func DefaultBackoff(min, max time.Duration, attemptNum int, resp *http.Response) time.Duration {
 	if resp != nil {
-		if resp.StatusCode == http.StatusTooManyRequests {
+		if resp.StatusCode == http.StatusTooManyRequests || resp.StatusCode == http.StatusServiceUnavailable {
 			if s, ok := resp.Header["Retry-After"]; ok {
 				if sleep, err := strconv.ParseInt(s[0], 10, 64); err == nil {
 					return time.Second * time.Duration(sleep)