fix(ci): Update GoReleaser action to v2 for version 2 config

The .goreleaser.yml uses version: 2 schema which requires GoReleaser v2.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: sionsmith

.github/workflows/release.yml

@@ -33,9 +33,9 @@ jobs:
           passphrase: ${{ secrets.GPG_PASSPHRASE }}
 
       - name: Run GoReleaser
-        uses: goreleaser/goreleaser-action@v5
+        uses: goreleaser/goreleaser-action@v6
         with:
-          version: latest
+          version: "~> v2"
           args: release --clean
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}