Add binary distribution via GoReleaser

[ChrisJBurns]

Summary

• Replace go run compilation with pre-built binary downloads for faster action execution
• Add GoReleaser configuration for multi-platform binary builds (linux/darwin, amd64/arm64)
• Add release workflow that triggers on version tags
• Users now specify releaseo_version input to select which release to use

Changes

• .goreleaser.yml - GoReleaser config for building release binaries
• .github/workflows/release.yml - Workflow that runs tests and publishes binaries on tag push
• action.yml - Download pre-built binary instead of using go run, add releaseo_version input
• README.md - Updated examples and inputs table with new releaseo_version input
• .gitignore - Ignore GoReleaser dist directory

Benefits

• Faster execution: No more compile-time overhead on every action run
• Clear versioning: Users explicitly choose which releaseo version to use
• Simpler: Avoids composite action limitations with github.action_ref

Test plan

• Create a test release tag to verify GoReleaser builds binaries correctly
• Test action in a workflow with the new releaseo_version input
• Verify download works for all supported platforms

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