Use a job matrix of runners for "Test Integration" workflow

Since this is a tool created for use in a single installation, which uses Linux, it is not necessary to run the tests on
the runners for each operating system as is the case with a tool intended for general use. Howevever, this workflow is a
standardized project asset used by all projects. Aligning with the standardized form facilitates syncs of fixes and
improvements to and from the upstream asset.

Author: per1234

.github/workflows/test-go-integration-task.yml

@@ -67,7 +67,13 @@ jobs:
   test:
     needs: run-determination
     if: needs.run-determination.outputs.result == 'true'
-    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        operating-system:
+          - ubuntu-latest
+
+    runs-on: ${{ matrix.operating-system }}
 
     env:
       ARDUINO_LINT_SOURCE_PATH: arduino-lint