update test workflow to avoid running it several times

Author: prohde

.github/workflows/test.yml

@@ -10,15 +10,25 @@ on:
     branches: [ master ]
 
 jobs:
+  pre_job:
+    runs-on: ubuntu-latest
+    outputs:
+      should_skip: ${{ steps.skip_check.outputs.should_skip }}
+    steps:
+      - id: skip_check
+        uses: fkirc/skip-duplicate-actions@v5
+        with:
+          concurrent_skipping: same_content_newer
+          skip_after_successful_duplicate: 'true'
   test:
-
+    needs: pre_job
+    if: needs.pre_job.outputs.should_skip != 'true'
     timeout-minutes: 10
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       matrix:
         python-version: [ '3.8', '3.9', '3.10', '3.11' ]
-
     steps:
     - uses: actions/checkout@v3
     - name: Start the Docker container with the test data