Add route for group imports direct upload

internal/upstream/routes.go

@@ -215,6 +215,7 @@ func (u *upstream) configureRoutes() {
 		// Overall status can be seen at https://gitlab.com/groups/gitlab-org/-/epics/1802#current-status
 		route("POST", apiPattern+`v4/projects/[0-9]+/wikis/attachments\z`, uploadAccelerateProxy),
 		route("POST", apiPattern+`graphql\z`, uploadAccelerateProxy),
+		route("POST", apiPattern+`v4/groups/import`, upload.Accelerate(api, signingProxy)),
 
 		// Explicitly proxy API requests
 		route("", apiPattern, proxy),

upload_test.go

@@ -136,6 +136,7 @@ func TestAcceleratedUpload(t *testing.T) {
 		{"POST", `/api/v4/projects/1/wikis/attachments`, false},
 		{"POST", `/api/graphql`, false},
 		{"PUT", "/api/v4/projects/9001/packages/nuget/v1/files", true},
+		{"POST", `/api/v4/groups/import`, true},
 	}
 
 	for _, tt := range tests {