Update SharingTime to 20 min as 15 is not enough

repositories.go

@@ -576,7 +576,7 @@ func TriggerTests(c *gin.Context, work *Work, repo *Repository, u *User) {
 		Key:    aws.String(filepath.Join(fmt.Sprintf("%d", work.Id), fmt.Sprintf("rendu-%s.tar.xz", login))),
 	})
 
-	url, err := req.Presign(SharingTime)
+	url, err := req.Presign(SharingTime * 20)
 	if err != nil {
 		log.Println("Unable to create presign URL:", err)
 		c.AbortWithStatusJSON(http.StatusInternalServerError, gin.H{"errmsg": "Something goes wrong when creating the presigned URL."})

submissions.go

@@ -17,7 +17,7 @@ import (
 	"github.com/gin-gonic/gin"
 )
 
-const SharingTime = 15 * time.Minute
+const SharingTime = 10 * time.Minute
 
 var (
 	s3_endpoint   string