Run CI on Ubuntu 20.

Author: Tim Van Den Broecke

.github/workflows/continuous_integration.yml

@@ -8,7 +8,7 @@ on:
       - master
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
       - name: Checkout
         uses: actions/checkout@v2

base/build.gradle

@@ -59,7 +59,7 @@ task testAllJavaVersions() { testAllTask ->
 
     javaVersionsForTest.each {version ->
 
-        if (version != 10) task("testJava$version", type: Test) {
+        task("testJava$version", type: Test) {
 
             // The version of bytebuddy used by mockk only supports Java 19 experimentally so far
             if (version == 19) systemProperty 'net.bytebuddy.experimental', true