Add a simple way to rename branch like gh (#15870)

- Update default branch if needed
- Update protected branch if needed
- Update all not merged pull request base branch name
- Rename git branch
- Record this rename work and auto redirect for old branch on ui

Signed-off-by: a1012112796 <1012112796@qq.com>
Co-authored-by: delvh <dev.lh@web.de>

models/migrations/migrations.go

@@ -346,6 +346,8 @@ var migrations = []Migration{
 	NewMigration("Add table commit_status_index", addTableCommitStatusIndex),
 	// v196 -> v197
 	NewMigration("Add Color to ProjectBoard table", addColorColToProjectBoard),
+	// v197 -> v198
+	NewMigration("Add renamed_branch table", addRenamedBranchTable),
 }
 
 // GetCurrentDBVersion returns the current db version