CI_fix - fix pdk build

.github/workflows/user_project_ci.yml

diff --git a/.github/workflows/user_project_ci.yml b/.github/workflows/user_project_ci.yml
index bfb5d58..2f74512 100644
--- a/.github/workflows/user_project_ci.yml
+++ b/.github/workflows/user_project_ci.yml
@@ -23,6 +23,7 @@
       - name: Export PDK ROOT
         run: |
           echo "PDK_ROOT=/usr/local/pdk" >> $GITHUB_ENV
+          export PDK_ROOT=/usr/local/pdk
 
       - name: Install Magic
         run: bash ${GITHUB_WORKSPACE}/.github/scripts/install_magic.sh