Fix one more path to cugraphops in build workflow (#3554)

#3547 was an incomplete fix

Authors:
  - Vyas Ramasubramani (https://github.com/vyasr)

Approvers:
  - Ray Douglass (https://github.com/raydouglass)

URL: #3554

.github/workflows/build.yaml

@@ -111,7 +111,7 @@ jobs:
       extra-repo-sha: branch-23.06
       extra-repo-deploy-key: CUGRAPH_OPS_SSH_PRIVATE_DEPLOY_KEY
 
-      skbuild-configure-options: "-DDETECT_CONDA_ENV=OFF -DCUGRAPH_BUILD_WHEELS=ON -DFIND_CUGRAPH_CPP=OFF -DCPM_cugraph-ops_SOURCE=/project/cugraph-ops/"
+      skbuild-configure-options: "-DDETECT_CONDA_ENV=OFF -DCUGRAPH_BUILD_WHEELS=ON -DFIND_CUGRAPH_CPP=OFF -DCPM_cugraph-ops_SOURCE=${GITHUB_WORKSPACE}/python/pylibcugraph/cugraph-ops/"
   wheel-publish-cugraph:
     needs: wheel-build-cugraph
     secrets: inherit