fix: completion for fish-shell

Author: arbourd

.goreleaser.yml

@@ -85,7 +85,7 @@ brews:
       output = Utils.popen_read("#{bin}/golangci-lint completion zsh")
       (zsh_completion/"_golangci-lint").write output
       output = Utils.popen_read("#{bin}/golangci-lint completion fish")
-      (fish_completion/"eksctl.fish").write output
+      (fish_completion/"golangci-lint.fish").write output
       prefix.install_metafiles
     test: |
       system "#{bin}/golangci-lint --version"