Add support for Homebrew

[mkuziemko]

Description

Changes proposed in this pull request:

• add generation of brew formulae for capact and populator in goreleaser

There was created a dedicated repository for Homebrew formulas.

Testing

1. clone a forked repository:

git clone https://github.com/mkuziemko/capact/

2. replace Tap details in .goreleaser.yml file:

  tap: &homebrew-tap
    owner: mkuizemko
    name: homebrew-tap

Note: comment out a section with a docker, blobs and release as there are not needed.

3. generate a personal GitHub token
4. generate a test release:

GITHUB_TOKEN=token goreleaser release --debug --timeout 60m

It should generate a test release in the forked repository with binaries and create a commit in the forked homebrew-tap repository.

Related issue(s)

• Generate and publish a homebrew-tap recipe for Capact CLI #587

[mszostok]

Tested e2e:

• https://github.com/mszostok/homebrew-tap-test
• https://github.com/mszostok/capact/releases/tag/v0.7.0

Please update also related documentation: https://capact.io/docs/next/cli/getting-started

[mszostok]

PR discussed f2f

[mszostok]

LGTM, but please fix url before merging