Add basic CI test

.github/workflows/test.yml

@@ -0,0 +1,30 @@
+name: Test
+
+on:
+  pull_request:
+    branches: '*'
+  push:
+    branches:
+      - main
+      - ci-test
+
+jobs:
+  test:
+    name: Run unit tests
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-go@v4
+        with:
+          go-version-file: 'go.mod'
+          check-latest: true
+      - name: Set up Gitea access token
+        env:
+          TOKEN: ${{ secrets.CICD_REPO_TOKEN }}
+        run: |
+          git config --global url."https://$TOKEN:@git.vdb.to/".insteadOf https://git.vdb.to/
+      - name: Build tools
+        run: make dumpdiff.plugeth dumpdiff.geth
+      - name: Run diff comparison
+        run: ./scripts/compare-diffs.sh
+