Sync git hooks when config file path changed

[wolfogre]

A patch to #17335.

Just like AppPath, Gitea writes its own CustomConf into git hook scripts too. If Gitea's CustomConf changes, then the git push may fail.

[wolfogre]

See:

gitea/modules/repository/hooks.go

Lines 78 to 96 in 2cc7408

	giteaHookTpls = []string{
	// for pre-receive
	fmt.Sprintf(`#!/usr/bin/env %s
	# AUTO GENERATED BY GITEA, DO NOT MODIFY
	%s hook --config=%s pre-receive
	`, setting.ScriptType, util.ShellEscape(setting.AppPath), util.ShellEscape(setting.CustomConf)),
	// for update
	fmt.Sprintf(`#!/usr/bin/env %s
	# AUTO GENERATED BY GITEA, DO NOT MODIFY
	%s hook --config=%s update $1 $2 $3
	`, setting.ScriptType, util.ShellEscape(setting.AppPath), util.ShellEscape(setting.CustomConf)),
	// for post-receive
	fmt.Sprintf(`#!/usr/bin/env %s
	# AUTO GENERATED BY GITEA, DO NOT MODIFY
	%s hook --config=%s post-receive
	`, setting.ScriptType, util.ShellEscape(setting.AppPath), util.ShellEscape(setting.CustomConf)),
	}