Change to latest swift ubuntu container

Author: dehesa

.github/workflows/tests.yml

@@ -15,16 +15,10 @@ jobs:
   tests_on_Ubuntu:
     name: Tests on Ubuntu
     runs-on: ubuntu-latest
+    container:
+      image: swift:latest
     steps:
       - uses: actions/checkout@v2
-      - name: Install Swift Dependencies
-        run: sudo apt-get install clang libicu-dev
-      - name: Download Swift
-        run: wget "https://swift.org/builds/swift-5.2-release/ubuntu1804/swift-5.2-RELEASE/swift-5.2-RELEASE-ubuntu18.04.tar.gz"
-      - name: Install Swift
-        run: |
-          tar xzf swift-5.2-RELEASE-ubuntu18.04.tar.gz
-          echo "::add-path::$(pwd)/swift-5.2-RELEASE-ubuntu18.04/usr/bin"
       - name: Build
         run: swift build -v
       - name: Run tests

README.md

@@ -3,9 +3,9 @@
 </p>
 
 <p align="center">
-    <img src="docs/Assets/Badges/Swift.svg" alt="Swift 5.1">
+    <img src="docs/Assets/Badges/Swift.svg" alt="Swift 5.x">
     <img src="docs/Assets/Badges/Apple.svg" alt="macOS 10.10+ - iOS 8+ - tvOS 9+ - watchOS 2+">
-    <img src="docs/Assets/Badges/Linux.svg" alt="Linux">
+    <img src="docs/Assets/Badges/Ubuntu.svg" alt="Ubuntu 18.04">
     <a href="http://doge.mit-license.org"><img src="docs/Assets/Badges/License.svg" alt="MIT License"></a>
 </p>