Use the type RefName for all the needed places and fix pull mirror sync bugs (#24634)

This PR replaces all string refName as a type `git.RefName` to make the
code more maintainable.

Fix #15367
Replaces #23070 
It also fixed a bug that tags are not sync because `git remote --prune
origin` will not remove local tags if remote removed.

We in fact should use `git fetch --prune --tags origin` but not `git
remote update origin` to do the sync.

Some answer from ChatGPT as ref.

> If the git fetch --prune --tags command is not working as expected,
there could be a few reasons why. Here are a few things to check:
> 
>Make sure that you have the latest version of Git installed on your
system. You can check the version by running git --version in your
terminal. If you have an outdated version, try updating Git and see if
that resolves the issue.
> 
>Check that your Git repository is properly configured to track the
remote repository's tags. You can check this by running git config
--get-all remote.origin.fetch and verifying that it includes
+refs/tags/*:refs/tags/*. If it does not, you can add it by running git
config --add remote.origin.fetch "+refs/tags/*:refs/tags/*".
> 
>Verify that the tags you are trying to prune actually exist on the
remote repository. You can do this by running git ls-remote --tags
origin to list all the tags on the remote repository.
> 
>Check if any local tags have been created that match the names of tags
on the remote repository. If so, these local tags may be preventing the
git fetch --prune --tags command from working properly. You can delete
local tags using the git tag -d command.

---------

Co-authored-by: delvh <dev.lh@web.de>

services/webhook/feishu.go

@@ -48,7 +48,7 @@ var _ PayloadConvertor = &FeishuPayload{}
 // Create implements PayloadConvertor Create method
 func (f *FeishuPayload) Create(p *api.CreatePayload) (api.Payloader, error) {
 	// created tag/branch
-	refName := git.RefEndName(p.Ref)
+	refName := git.RefName(p.Ref).ShortName()
 	text := fmt.Sprintf("[%s] %s %s created", p.Repo.FullName, p.RefType, refName)
 
 	return newFeishuTextPayload(text), nil
@@ -57,7 +57,7 @@ func (f *FeishuPayload) Create(p *api.CreatePayload) (api.Payloader, error) {
 // Delete implements PayloadConvertor Delete method
 func (f *FeishuPayload) Delete(p *api.DeletePayload) (api.Payloader, error) {
 	// created tag/branch
-	refName := git.RefEndName(p.Ref)
+	refName := git.RefName(p.Ref).ShortName()
 	text := fmt.Sprintf("[%s] %s %s deleted", p.Repo.FullName, p.RefType, refName)
 
 	return newFeishuTextPayload(text), nil
@@ -73,7 +73,7 @@ func (f *FeishuPayload) Fork(p *api.ForkPayload) (api.Payloader, error) {
 // Push implements PayloadConvertor Push method
 func (f *FeishuPayload) Push(p *api.PushPayload) (api.Payloader, error) {
 	var (
-		branchName = git.RefEndName(p.Ref)
+		branchName = git.RefName(p.Ref).ShortName()
 		commitDesc string
 	)