fix: setup docker context for buildx

ref: actions/actions-runner-controller#192 (comment)

Author: mhaley-tignis

action.yml

@@ -56,8 +56,15 @@ runs:
         tags: |
           type=sha,prefix=${{env.BRANCH_NAME}}-${{env.DATE}}-${{github.run_number}}-,enable=${{ !startsWith(github.event_name, 'release') }}
           type=semver,pattern={{version}},enable=${{ startsWith(github.event_name, 'release') }}
+    - name: Set up Docker Context for Buildx
+      id: buildx-context
+      run: |
+        docker context create builders
+      shell: bash
     - name: Set up Docker Buildx
       uses: docker/setup-buildx-action@v3
+      with:
+        endpoint: builders
     - name: Login to ACR
       uses: docker/login-action@v1
       with: