chore(golang): bump to golang:1.15

Author: giangbui

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.14 as build-deps
+FROM quay.io/cdis/golang:1.15 as build-deps
 
 # Build static binary
 RUN mkdir -p /go/src/github.com/uc-cdis/ssjdispatcher

handlers/configuration.go

@@ -29,7 +29,7 @@ func GetMaxJobConfig() int {
 func GetCleanupTime() int {
 	cleanupTime, err := strconv.Atoi(os.Getenv("CLEANUP_TIME"))
 	if err != nil {
-		cleanupTime = 60
+		cleanupTime = 120
 	}
 	return cleanupTime
 }