feat: gitea: vendor + fix heatmap

package/gitea/source/models/migrations/v1_16/v203.go

@@ -0,0 +1,17 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_16
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddProjectIssueSorting(x *xorm.Engine) error {
+	// ProjectIssue saves relation from issue to a project
+	type ProjectIssue struct {
+		Sorting int64 `xorm:"NOT NULL DEFAULT 0"`
+	}
+
+	return x.Sync(new(ProjectIssue))
+}