use make target to build load test image

Author: sean-breen

.github/workflows/ci.yml

@@ -290,23 +290,27 @@ jobs:
       - name: Set env
         run: echo "GO_VERSION=$(cat go.mod | grep toolchain | sed 's/toolchain //; s/go//')" >> $GITHUB_ENV
 
+#      - name: Build Docker Image
+#        uses: docker/build-push-action@2cdde995de11925a030ce8070c3d77a52ffcf1c0 # v5.3.0
+#        env:
+#          GO_VERSION: ${{ env.GO_VERSION }}
+#        with:
+#          file: test/docker/load/Dockerfile
+#          tags: agent_ubuntu_24.04_load_test:1.0.0
+#          context: '.'
+#          push: false
+#          load: true
+#          no-cache: true
+#          secrets: |
+#            "nginx-crt=${{ secrets.NGINX_CRT }}"
+#            "nginx-key=${{ secrets.NGINX_KEY }}"
+#          build-args: |
+#            OSARCH=amd64
+#            GO_VERSION=${{ env.GO_VERSION }}
+
       - name: Build Docker Image
-        uses: docker/build-push-action@2cdde995de11925a030ce8070c3d77a52ffcf1c0 # v5.3.0
-        env:
-          GO_VERSION: ${{ env.GO_VERSION }}
-        with:
-          file: test/docker/load/Dockerfile
-          tags: agent_ubuntu_24.04_load_test:1.0.0
-          context: '.'
-          push: false
-          load: true
-          no-cache: true
-          secrets: |
-            "nginx-crt=${{ secrets.NGINX_CRT }}"
-            "nginx-key=${{ secrets.NGINX_KEY }}"
-          build-args: |
-            OSARCH=amd64
-            GO_VERSION=${{ env.GO_VERSION }}
+        run: | 
+          make build-load-test-image
 
       - name: Run Load Tests
         run: |