Update CI (#17)

* Update CI

* wip

* wip

Author: stephencelis

.github/workflows/ci.yml

@@ -10,16 +10,14 @@ on:
 
 jobs:
   macos:
-    name: MacOS
-    runs-on: macOS-latest
+    name: macOS
+    runs-on: macos-14
     strategy:
       matrix:
         xcode:
-          - '12.4'
-          - '12.5.1'
-          - '13.0'
+          - '15.4'
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Select Xcode ${{ matrix.xcode }}
         run: sudo xcode-select -s /Applications/Xcode_${{ matrix.xcode }}.app
       - name: Print Swift version

.gitignore

@@ -38,7 +38,6 @@ playground.xcworkspace
 # Packages/
 # Package.pins
 .build/
-Package.resolved
 
 # CocoaPods
 #
@@ -70,4 +69,3 @@ fastlane/test_output
 .DS_Store
 Packages/*
 *.xcodeproj/*
-Package.resolved