Bring back visionOS CI support

This sorta reverts commit 4b021b6.

https:/actions/runner-images/blob/main/images/macos/macos-14-arm64-Readme.md
now says visionOS is back as an SDK, but there are no simulators.

.github/workflows/cocoapods.yml

@@ -29,8 +29,9 @@ jobs:
  matrix:
  # watchOS fails linting when there are test, wedge in --skip-tests for
  # those runs.
- # GitHub runners dropped visionOS. https:/actions/runner-images/issues/10559
- PLATFORM: ["ios", "macos", "tvos", "watchos --skip-tests"]
+ # https:/actions/runner-images/blob/main/images/macos/macos-14-arm64-Readme.md
+ # doesn't list any simulators for visionOS, so skip the tests.
+ PLATFORM: ["ios", "macos", "tvos", "visionos --skip-tests", "watchos --skip-tests"]
  CONFIGURATION: ["Debug", "Release"]
  steps:
  - uses: actions/checkout@v4

.github/workflows/swiftpm.yml

@@ -46,14 +46,14 @@ jobs:
  strategy:
  fail-fast: false
  matrix:
- # GitHub runners dropped visionOS. https:/actions/runner-images/issues/10559
- PLATFORM: ["ios", "macos", "tvos", "watchos"]
+ PLATFORM: ["ios", "macos", "tvos", "visionos", "watchos"]
  CONFIGURATION: ["Debug", "Release"]
  steps:
  - uses: actions/checkout@v4
  - name: Build and Test
  run: |
  set -eu
+ ACTIONS="build test"
  case "${{matrix.PLATFORM}}" in
  ios)
  DESTINATION="platform=iOS Simulator,name=iPhone 14,OS=latest"
@@ -65,7 +65,10 @@ jobs:
  DESTINATION="platform=tvOS Simulator,name=Apple TV,OS=latest"
  ;;
  visionos)
+ # https:/actions/runner-images/blob/main/images/macos/macos-14-arm64-Readme.md
+ # doesn't list any visionOS simulators installed
  DESTINATION="platform=visionOS Simulator,name=Apple Vision Pro,OS=latest"
+ ACTIONS="build"
  ;;
  watchos)
  DESTINATION="platform=WatchOS Simulator,name=Apple Watch Series 7 (45mm),OS=latest"
@@ -76,4 +79,4 @@ jobs:
  -scheme GTMSessionFetcher-Package \
  -configuration ${{ matrix.CONFIGURATION }} \
  -destination "${DESTINATION}" \
- build test
+ ${ACTIONS}