chore: attempt to fix ko package name

Signed-off-by: Matthew Penner <me@matthewp.io>

.goreleaser.yaml

@@ -12,7 +12,8 @@ metadata:
 report_sizes: true
 
 builds:
-  - binary: caddy-gateway
+  - id: gateway
+    binary: caddy-gateway
     env:
       - CGO_ENABLED=0
     goos:
@@ -24,21 +25,21 @@ builds:
       - -trimpath
 
 kos:
-  - repository: ghcr.io/caddyserver/gateway
+  - build: gateway
+    repository: ghcr.io/caddyserver/gateway
     platforms:
       - linux/amd64
       - linux/arm64
     tags:
-      - '{{.Version}}'
+      - '{{.Tag}}'
       # TODO: find a way to set the latest package tag, only when the release gets published on GitHub.
       # we can trigger an action on release_published, but we then need to write a system that "pushes"
       # the `latest` manifest.
-      # - latest
+      - '{{ if not .Prerelease }}latest{{ end }}'
     creation_time: '{{.CommitTimestamp}}'
     ko_data_creation_time: '{{.CommitTimestamp}}'
     sbom: 'spdx'
     bare: true
-    base_import_paths: true
     preserve_import_paths: false
 
 checksum: