Remove Swift 5.7 Support

Author: swhitty

.github/workflows/build.yml

@@ -6,10 +6,10 @@ on:
   workflow_dispatch:
 
 jobs:
-  xcode_14_3_1:
+  xcode_15_0_1:
     runs-on: macos-13
     env:
-      DEVELOPER_DIR: /Applications/Xcode_14.3.1.app/Contents/Developer
+      DEVELOPER_DIR: /Applications/Xcode_15.0.1.app/Contents/Developer
     steps:
       - name: Checkout
         uses: actions/checkout@v3
@@ -26,10 +26,10 @@ jobs:
         with:
           files: ./coverage_report.lcov
 
-  xcode_15:
+  xcode_14_3_1:
     runs-on: macos-13
     env:
-      DEVELOPER_DIR: /Applications/Xcode_15.0.app/Contents/Developer
+      DEVELOPER_DIR: /Applications/Xcode_14.3.1.app/Contents/Developer
     steps:
       - name: Checkout
         uses: actions/checkout@v3
@@ -40,9 +40,9 @@ jobs:
       - name: Test
         run: swift test --skip-build
 
-  linux_swift_5_9:
+  linux_swift_5_9_2:
     runs-on: ubuntu-latest
-    container: swift:5.9
+    container: swift:5.9.2
     steps:
       - name: Checkout
         uses: actions/checkout@v3
@@ -65,16 +65,3 @@ jobs:
         run: swift build --build-tests
       - name: Test
         run: swift test --skip-build
-
-  linux_swift_5_7:
-    runs-on: ubuntu-latest
-    container: swift:5.7
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-      - name: Version
-        run: swift --version
-      - name: Build
-        run: swift build --build-tests
-      - name: Test
-        run: swift test --skip-build

Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version:5.7
+// swift-tools-version:5.8
 import PackageDescription
 
 let package = Package(

README.md

@@ -1,6 +1,6 @@
 [![Build](https://github.com/swhitty/KeyValueCoder/actions/workflows/build.yml/badge.svg)](https://github.com/swhitty/KeyValueCoder/actions/workflows/build.yml)
 [![CodeCov](https://codecov.io/gh/swhitty/KeyValueCoder/branch/main/graphs/badge.svg)](https://codecov.io/gh/swhitty/KeyValueCoder/branch/main)
-[![Swift 5.9](https://img.shields.io/badge/swift-5.7%20–%205.9-red.svg?style=flat)](https://developer.apple.com/swift)
+[![Swift 5.9](https://img.shields.io/badge/swift-5.8%20–%205.9-red.svg?style=flat)](https://developer.apple.com/swift)
 [![License](https://img.shields.io/badge/license-MIT-lightgrey.svg)](https://opensource.org/licenses/MIT)
 [![Twitter](https://img.shields.io/badge/[email protected])](http://twitter.com/simonwhitty)