goose-cli: fix hash mismatch and add update script

[Copilot]

Automated version bump to 1.15.0 only updated the version number, not the source or cargo hashes. The package was converted from binary to source builds in #04ec296 but the custom update script was removed, leaving nix-update unable to handle the dual-hash FOD pattern.

Changes

• Fix hashes for v1.15.0

  • Source hash: sha256-i9BMq9PPwTGfhSAbDrck+B74g14U+8uYOmpfN5xeyis=
  • cargoHash: sha256-V6Vf6YzCNDwMlLFHICianR6f6zz7fEbm7+1Qeel3GDI=

• Add update.py using RustPackageUpdater - ensures future automated updates correctly handle both fetchFromGitHub hash and cargoHash

updater = RustPackageUpdater(
    package="goose-cli",
    version_fetcher=lambda: fetch_github_latest_release("block", "goose"),
    repo_owner="block",
    repo_name="goose",
    tag_template="v{version}",
)

Original prompt

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This section details on the original issue you should resolve

<issue_title>Goose CLI build breaks due to hash mismatch</issue_title>
<issue_description>Attempting to install goose-cli fails due to hash mismatch (amd64/linux). Hash value in goose-cli/package.nix which is currently set to sha256-MEFHVuTejAn1vwTwaxM7XEBSCuFAwLwjptIhKHR6cMM= which is the hash for tag 1.14.0 and not the desired 1.15.0. See nix flake prefetch output:

❯ nix flake prefetch github:block/goose/v1.15.0 --json | jq .hash -r
sha256-i9BMq9PPwTGfhSAbDrck+B74g14U+8uYOmpfN5xeyis=
❯ nix flake prefetch github:block/goose/v1.14.0 --json | jq .hash -r
sha256-MEFHVuTejAn1vwTwaxM7XEBSCuFAwLwjptIhKHR6cMM=

My guess is the change introduced in 04ec296 has led to hash no longer being automatically updated by goose-cli/update.sh script, as per 77c5ab6 (I can see update.sh is no more, hence the guessing).

I believe updating the hash will suffice, but I'm hesitant to open a PR to do that manually as I see there's a number of automated processes around package updates already.

</issue_description>

<agent_instructions>Fix the update script to patch the hash correctly, if patching gets to complex, move stuff to json, where updating is trivial. </agent_instructions>

Comments on the Issue (you are @copilot in this section)

@Mic92 We really need better tests for these complex FODs.

• Fixes Goose CLI build breaks due to hash mismatch #1116

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