Update cmake-build.yml, login to Dockerhub added: #21

Author: artiomn

.github/workflows/cmake-build.yml

@@ -121,6 +121,12 @@ jobs:
         run:
           sudo cp -a ${{ github.workspace }}/docker/sdk-image/** ${{ steps.strings.outputs.build-output-dir }}/_packages/
 
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ vars.DOCKERHUB_LOGIN }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
       - name: Create SDK Docker image
         if: matrix.c_compiler == 'gcc'
         uses: docker/build-push-action@v7