terramaid: disable autobump

[stefanb]

Autobump disabled because upstram bumps it as needed: https://github.com/RoseSecurity/Terramaid/blob/26ceb1eaae1a52b264f099dc9a7f37a6d2a5a08c/.github/workflows/build.yaml#L124-L127

      - uses: dawidd6/action-homebrew-bump-formula@1446dca236b0440c6f02723a3f14f13be2c04ab0 # v7
        with:
          # A PR will be sent to github.com/Homebrew/homebrew-core to update this formula:
          formula: terramaid

and this was failing with:

Error: Whoops, the terramaid formula has its version update
pull requests automatically opened by BrewTestBot every ~3 hours!
We'd still love your contributions, though, so try another one
that is excluded from autobump list (i.e. it has 'no_autobump!'
method or 'livecheck' block with 'skip'.)

Spin-off from

• terramaid: update checksum for 2.15.3 release #290269

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