DX-2778 Ubuntu Version (#64)

* DX-2778 Ubuntu Version

* v3

* readme

Author: ckoegel

.github/workflows/test.yml

@@ -16,11 +16,11 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix: 
-        os: [windows-2022, windows-2019, ubuntu-18.04, ubuntu-20.04]
+        os: [windows-2022, windows-2019, ubuntu-20.04, ubuntu-22.04]
         ruby-version: [2.6, 2.7, 3.0]
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
 
     - name: Set up Ruby
       uses: ruby/setup-ruby@v1

README.md

@@ -7,8 +7,8 @@
 |:---:|:---:|
 | Windows 2016 | 2.6, 2.7, 3.0 |
 | Windows 2019 | 2.6, 2.7, 3.0 |
-| Ubuntu 18.04 | 2.6, 2.7, 3.0 |
 | Ubuntu 20.04 | 2.6, 2.7, 3.0 |
+| Ubuntu 22.04 | 2.6, 2.7, 3.0 |
 
 ## Getting Started