Use request.CTX instead of *request.Context (#24877)

* Use request.CTX instead of *request.Context

* Fix tests

server/channels/jobs/import_process/worker.go

@@ -26,7 +26,7 @@ type AppIface interface {
 	FileExists(path string) (bool, *model.AppError)
 	FileSize(path string) (int64, *model.AppError)
 	FileReader(path string) (filestore.ReadCloseSeeker, *model.AppError)
-	BulkImportWithPath(c *request.Context, jsonlReader io.Reader, attachmentsReader *zip.Reader, dryRun bool, workers int, importPath string) (*model.AppError, int)
+	BulkImportWithPath(c request.CTX, jsonlReader io.Reader, attachmentsReader *zip.Reader, dryRun bool, workers int, importPath string) (*model.AppError, int)
 	Log() *mlog.Logger
 }