Fix Homebrew cask release (#56)

Author: vladimirvivien

.goreleaser.yml

@@ -102,7 +102,6 @@ homebrew_casks:
     ids:
     - ktop
     binary: ktop
-    directory: Casks
     repository:
       owner: vladimirvivien
       name: homebrew-oss-tools
@@ -116,7 +115,6 @@ homebrew_casks:
     skip_upload: auto
 
 # ko-generated images
-
 kos:
   - id: ko-ktop
     build: ktop