build: add nfpms config to generate deb and rpm packages

[Vaishnav88sk]

Description

• This PR addresses issue Publish microcks to apt-get package manager for installation on linux/debian based systems #153 by configuring GoReleaser to automatically build native Linux packages (.deb and .rpm).
• Currently, Linux users must manually download the raw binary via curl and move it to their executable path. By adding the nfpms block to our .goreleaser.yaml, we now generate official .deb (Debian/Ubuntu) and .rpm (RedHat/CentOS) packages alongside our existing release artifacts.
• Added nfpms block below the brews block in .goreleaser.yaml.

Next Steps & Discussion

This PR provides the raw packages, which users can now download and install via sudo dpkg -i microcks.deb.
To fully achieve the apt-get install microcks experience requested in the issue, we will need to host these packages in an APT repository. I highly recommend using Gemfury, as it provides a free tier for OSS and integrates natively with GoReleaser. Once we have a Gemfury organization account set up, we can easily add the fury publisher block in a follow-up PR or update in this PR!

Ref:

• nFPM: https://goreleaser.com/customization/package/nfpm/
• GemFury: https://goreleaser.com/customization/publish/gemfury/

Related issue(s)

Fixes #153

[Vaishnav88sk]

To fully resolve this and provide a seamless apt-get install microcks experience, I recommend using Gemfury to host the APT repository. It provides a 100% free tier for public open-source packages and integrates natively with our existing GoReleaser setup.

Here is the proposed process to implement this:

1. Packaging: We update our .goreleaser.yaml to include the nfpms plugin, which will automatically generate .deb and .rpm packages during the build process.
2. Hosting Account: We need to create a free Gemfury organization account for Microcks.
3. CI/CD Integration:
   • We generate a Gemfury API token and add it to our repository's GitHub Secrets (e.g., FURY_TOKEN).
   • We add the fury publisher block to .goreleaser.yaml.
   • Going forward, every GitHub release will automatically trigger GoReleaser to upload the new .deb packages directly to the Gemfury APT repository.

[Vaishnav88sk]

cc @Harsh4902 @lbroudoux @yada

[github-actions]

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