Update the PR and release pipeline

.github/workflows/on-pr.yaml

@@ -3,10 +3,5 @@ name: Docker Build
 on: [pull_request]
 
 jobs:
-  build:
-    name: Run docker build
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - name: Run docker build
-        run: make docker-build
+  run-tests:
+    uses: ./.github/workflows/tests.yml

.github/workflows/publish.yaml

@@ -3,9 +3,12 @@ on:
   release:
     types: [published]
 jobs:
+  run-tests:
+    uses: ./.github/workflows/tests.yml
   build:
     name: Run docker build
     runs-on: ubuntu-latest
+    needs: run-tests
     steps:
       - uses: actions/checkout@v2
       - name: Get the version

.github/workflows/tests.yml

@@ -0,0 +1,37 @@
+name: Tests for Geth that are used in multiple jobs.
+
+on:
+  workflow_call:
+
+env:
+  GOPATH: /tmp/go
+
+jobs:
+  build:
+    name: Run docker build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Run docker build
+        run: make docker-build
+
+  statediff-unit-test:
+    name: Run statediff unit tests
+    runs-on: ubuntu-latest
+    env:
+      GO111MODULE: on
+    steps:
+      - name: Create GOPATH
+        run: mkdir -p /tmp/go
+
+      - uses: actions/setup-go@v3
+        with:
+          go-version: ">=1.18.0"
+          check-latest: true
+
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Run unit tests
+        run: |
+          make test