Move away from Git LFS uploading the XCFramework binary as release asset

[sideround]

Description

We are moving away from Git LFS since can add extra overhead for developers. Xcode uses its own git which does not always work well with a locally installed Git LFS.

Instead we are uploading the binary framework as a release asset and referencing its URL directly from Package.swift.

[Copilot]

Pull request overview

This pull request transitions from Git LFS to hosting XCFramework binaries as GitHub release assets to improve compatibility with Xcode's built-in git and Swift Package Manager. The change updates the release workflow to upload the binary framework as a release asset and dynamically generates Package.swift to reference the remote binary URL.

Changes:

• Added archive_swift.sh script to dynamically generate Package.swift with binary target URL and checksum
• Updated release workflow to compress and upload XCFramework as a release asset
• Removed Git LFS initialization and tracking from the release workflow

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 7 comments.

File	Description
archive_swift.sh	New script that generates Package.swift with dynamic binary target URL and checksum for remote XCFramework hosting
.github/workflows/release.yml	Updated to compress XCFramework, create draft release with binary asset, compute checksum, and use dynamically generated Package.swift instead of committing the binary with Git LFS

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[Copilot]

Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated 4 comments.

Comments suppressed due to low confidence (1)

.github/workflows/release.yml:249

• This step publishes the draft release created earlier (line 82-93) by default, which could expose the release before the binary asset is properly verified and the Package.swift is confirmed to work. The draft release at line 82-93 should remain a draft, and this final release step should include the binary asset file explicitly to ensure it's attached to the published release.

      - name: Create Release in swift repo
        uses: softprops/action-gh-release@v2
        with:
          repository: worldcoin/walletkit-swift
          token: ${{ secrets.WALLETKIT_BOT_TOKEN }}
          name: ${{ needs.pre-release-checks.outputs.new_version }}
          tag_name: ${{ needs.pre-release-checks.outputs.new_version }}
          body: |
            ## Version ${{ needs.pre-release-checks.outputs.new_version }}
            For full release notes, see the [main repo release](https://github.com/worldcoin/walletkit/releases/tag/${{ needs.pre-release-checks.outputs.new_version }}).
          make_latest: true

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