Drop support for Swift5.6 and corresponding Xcode version (#40)

Author: ra1028

.github/workflows/docs.yml

@@ -12,7 +12,7 @@ jobs:
     name: Publish Documentation
     runs-on: macos-12
     env:
-      DEVELOPER_DIR: /Applications/Xcode_14.0.1.app
+      DEVELOPER_DIR: /Applications/Xcode_14.2.app
     steps:
       - uses: actions/checkout@v2
       - name: Build docs

.github/workflows/test.yml

@@ -16,8 +16,7 @@ jobs:
     strategy:
       matrix:
         xcode_version:
-          - 13.3
-          - 14.0.1
+          - 14.2
     env:
       DEVELOPER_DIR: /Applications/Xcode_${{ matrix.xcode_version }}.app
     steps:
@@ -35,7 +34,7 @@ jobs:
     name: Validation
     runs-on: macos-12
     env:
-      DEVELOPER_DIR: /Applications/Xcode_14.0.1.app
+      DEVELOPER_DIR: /Applications/Xcode_14.2.app
     steps:
       - uses: actions/checkout@v2
       - name: Validate lint

README.md

@@ -146,8 +146,8 @@ Open `Examples/App.xcodeproj` and play around with it!
 
 |       |Minimum Version|
 |------:|--------------:|
-|Swift  |5.6            |
-|Xcode  |13.3           |
+|Swift  |5.7            |
+|Xcode  |14.2           |
 |iOS    |14.0           |
 |macOS  |11.0           |
 |tvOS   |14.0           |