GitHub Actions: add special case for Gradle 4.10/JDK11/Ubuntu

This is the “closest” Github Actions config we can get to our
target Debian build (Debian Bullseye/JDK11/Debian Gradle 4.4).

Author: msgilligan

.github/workflows/gradle.yml

@@ -11,6 +11,12 @@ jobs:
         java: ['8', '11', '17']
         distribution: ['temurin']
         gradle: ['7.2']
+        include:
+          # Special case to test something close to Debian config with the oldest supported (standard) Gradle on Ubuntu
+          - os: ubuntu-latest
+            java: '11'
+            distribution: 'temurin'
+            gradle: '4.10.3'
       fail-fast: false
     name: JAVA ${{ matrix.distribution }} ${{ matrix.java }} OS ${{ matrix.os }} Gradle ${{ matrix.gradle }}
     steps: