refactor: use Runtime.Goversion for dynamic Go version

- Replace hardcoded GO_VERSION env var with Runtime.Goversion template
- Remove GO_VERSION from GitHub Actions workflow
- Automatically detects Go version at build time
- More maintainable approach following best practices

Author: jackspirou

.github/workflows/release.yaml

@@ -45,7 +45,6 @@ jobs:
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         HOMEBREW_TAP_TOKEN: ${{ secrets.HOMEBREW_TAP_TOKEN }}
-        GO_VERSION: "go1.24"
 
     - name: Upload assets
       uses: actions/upload-artifact@v4

.goreleaser.yaml

@@ -37,7 +37,7 @@ builds:
       - -X main.version={{.Version}}
       - -X main.commit={{.ShortCommit}}
       - -X main.buildDate={{.Date}}
-      - -X main.goVersion={{.Env.GO_VERSION}}
+      - -X main.goVersion={{.Runtime.Goversion}}
       - -X main.builtBy=goreleaser
 
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