pdk validate and test on all major puppet version

Author: ldaneliukas

.github/workflows/pdk-test-unit.yml

@@ -6,20 +6,24 @@ on:
 
 jobs:
   validating:
-    runs-on: self-hosted-novum
+    runs-on: [self-hosted, linux]
+    strategy:
+      matrix:
+        puppet-version: [5, 6, 7]
     steps:
     - name: Clone repository
       uses: actions/checkout@v2
 
     - name: Run pdk validate
       uses: puppets-epic-show-theatre/action-pdk-validate@v1
       with:
-        # [optional]
-        # A string indicating the Puppet version to validate against, such as "5.4.2" or "5.5".
-        puppet-version: "5.5"
+        puppet-version: ${{ matrix.puppet-version }}
 
   testing:
-    runs-on: self-hosted-novum
+    runs-on: [self-hosted, linux]
+    strategy:
+      matrix:
+        puppet-version: [5, 6, 7]
     if: always()
     needs:
     - validating
@@ -31,6 +35,4 @@ jobs:
       uses: puppets-epic-show-theatre/action-pdk-test-unit@v1
       # added because there are open ended dependencies version requirements in metadata.json
       with:
-        # [optional]
-        # A string indicating the Puppet version to validate against, such as "5.4.2" or "5.5".
-        puppet-version: "5.5"
+        puppet-version: ${{ matrix.puppet-version }}