xcodebuild fails for 0.13.0

[metalurgical]

xcodebuild fails after updating package from 0.12.2 to 0.13.0.

Should be reproducible with the following github workflow snippet:

jobs:
  build:
    runs-on: macOS-latest
    strategy:
      matrix:
        platform:
          - iOS
    steps:
      - uses: actions/[email protected]
      - uses: mxcl/xcodebuild@v1
        with:
          platform: ${{ matrix.platform }}
          action: test
          scheme: <INSERT SCHEME NAME HERE>
          code-coverage: true
          upload-logs: always

[csjones]

Hey @metalurgical 👋

Thank you for calling this out! I've updated the 0.13.0 release to reflect that the minimum supported Swift version is 5.8 and by extension Xcode 14.3, I'm assuming this is why xcodebuild fails for you.

The easiest solution is to version lock to the previous release.

.package(name: "secp256k1", url: "https://github.com/GigaBitcoin/secp256k1.swift.git", exact: "0.12.2")