feat(txn2/kubefwd): cosign config

pkgs/txn2/kubefwd/pkg.yaml

@@ -1,5 +1,7 @@
 packages:
   - name: txn2/kubefwd@v1.24.1
+  - name: txn2/kubefwd
+    version: v1.24.0
   - name: txn2/kubefwd
     version: 1.18.1
   - name: txn2/kubefwd

pkgs/txn2/kubefwd/registry.yaml

@@ -131,6 +131,22 @@ packages:
         overrides:
           - goos: windows
             format: zip
+      - version_constraint: semver("< 1.24.1")
+        asset: kubefwd_{{.OS}}_{{.Arch}}.{{.Format}}
+        format: tar.gz
+        windows_arm_emulation: true
+        replacements:
+          amd64: x86_64
+          darwin: Darwin
+          linux: Linux
+          windows: Windows
+        checksum:
+          type: github_release
+          asset: kubefwd_checksums.txt
+          algorithm: sha256
+        overrides:
+          - goos: windows
+            format: zip
       - version_constraint: "true"
         asset: kubefwd_{{.OS}}_{{.Arch}}.{{.Format}}
         format: tar.gz
@@ -144,6 +160,15 @@ packages:
           type: github_release
           asset: kubefwd_checksums.txt
           algorithm: sha256
+          cosign:
+            bundle:
+              type: github_release
+              asset: kubefwd_checksums.txt.sigstore.json
+            opts:
+              - --certificate-identity
+              - https://github.com/txn2/kubefwd/.github/workflows/release.yml@refs/tags/{{.Version}}
+              - --certificate-oidc-issuer
+              - https://token.actions.githubusercontent.com
         overrides:
           - goos: windows
             format: zip