fix: Add a filter file type

Created by: qinyueshang

Signed-off-by: qinyueshang yue_hong_y@163.com

What type of PR is this?

/kind bug

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #

Special notes for reviewers:

Additional documentation, usage docs, etc.:

/assign @leoendless