Refactor storage content-type handling of ServeDirectURL (#36804)

* replace raw url.Values by *storage.ServeDirectOptions
* implement content-type in azblob
* implement content-disposition in azblob
* add tests for content types in response
* http.MethodPut for azure now allows implementing servedirect uploads

---------

Signed-off-by: ChristopherHX <christopher.homberger@web.de>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

routers/api/actions/artifactsv4.go

@@ -562,7 +562,8 @@ func (r *artifactV4Routes) getSignedArtifactURL(ctx *ArtifactContext) {
 	respData := GetSignedArtifactURLResponse{}
 
 	if setting.Actions.ArtifactStorage.ServeDirect() {
-		u, err := storage.ActionsArtifacts.URL(artifact.StoragePath, artifact.ArtifactPath, ctx.Req.Method, nil)
+		// DO NOT USE the http POST method coming from the getSignedArtifactURL endpoint
+		u, err := storage.ActionsArtifacts.ServeDirectURL(artifact.StoragePath, artifact.ArtifactPath, http.MethodGet, nil)
 		if u != nil && err == nil {
 			respData.SignedUrl = u.String()
 		}