Utilise composite workflows.

.github/actions/go-test/action.yml

@@ -0,0 +1,27 @@
+name: "Go Test"
+description: "Run Go tests with race detection"
+
+inputs:
+  go-version:
+    description: "Go version to use"
+    required: false
+    default: ">=1.24"
+  working-directory:
+    description: "Working directory"
+    required: false
+    default: "."
+
+runs:
+  using: "composite"
+  steps:
+    - name: Setup Go
+      uses: actions/setup-go@v5
+      with:
+        go-version: ${{ inputs.go-version }}
+
+    - name: Run tests
+      shell: bash
+      working-directory: ${{ inputs.working-directory }}
+      env:
+        CGO_ENABLED: 1
+      run: go test -race -v ./...