Feature non-zipped actions artifacts (action v7) (#36786)

- content_encoding contains a slash => v4 artifact
- updated proto files to support mime_type and no longer return errors for upload-artifact v7
- json and txt files are now previewed in browser
- normalized content-disposition header creation
- azure blob storage uploads directly in servedirect mode (no proxying data)
- normalize content-disposition headers based on go mime package
  - getting both filename and filename* encoding is done via custom code

Closes #36829

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Signed-off-by: ChristopherHX <christopher.homberger@web.de>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

services/lfs/server.go

@@ -172,7 +172,7 @@ func DownloadHandler(ctx *context.Context) {
 	if len(filename) > 0 {
 		decodedFilename, err := base64.RawURLEncoding.DecodeString(filename)
 		if err == nil {
-			ctx.Resp.Header().Set("Content-Disposition", "attachment; filename=\""+string(decodedFilename)+"\"")
+			ctx.Resp.Header().Set("Content-Disposition", httplib.EncodeContentDispositionAttachment(string(decodedFilename)))
 			ctx.Resp.Header().Set("Access-Control-Expose-Headers", "Content-Disposition")
 		}
 	}