feat(github): add postcommit workflow

.github/workflows/postcommit-check.yml

@@ -0,0 +1,40 @@
+name: Universum check
+on:
+  push
+
+jobs:
+  universum_postcommit:
+    name: Universum postcommit
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Setup python 3.8
+      uses: actions/setup-python@v4
+      with:
+        python-version: 3.8
+
+    - name: Install dependency
+      run: pip install universum[test]
+
+    - name: Universum
+      run:
+        python -u -m universum
+        --fail-unsuccessful
+        --vcs-type="git"
+        --git-repo "$GITHUB_SERVER_URL/$GITHUB_REPOSITORY"
+        --git-refspec "$GITHUB_REF_NAME"
+        --no-archive
+        --no-diff
+
+    - name: Publish Test Results
+      uses: EnricoMi/publish-unit-test-result-action@v1
+      if: always()
+      with:
+        files: artifacts/*.xml
+
+    - name: Collect artifacts
+      uses: actions/upload-artifact@v2
+      if: ${{ always() }}
+      with:
+        name: artifacts
+        path: artifacts