fix(ci): empty environment variable (#844)

Co-authored-by: pyansys-ci-bot <[email protected]>

Author: jorgepiloto

.github/workflows/ci_cd_night.yml

@@ -204,6 +204,7 @@ jobs:
           echo "image=${image_name}" >> "${GITHUB_OUTPUT}"
 
       - name: "Start the container from the desired image"
+        id: container
         env:
           STK_IMAGE: ${{ steps.docker.outputs.image }}
           LICENSE_SERVER: ${{ secrets.LICENSE_SERVER }}
@@ -216,6 +217,9 @@ jobs:
             --volume ${PWD}:/home/stk/pystk \
             "${STK_IMAGE}"
 
+          container_name=$(docker ps --latest --format "{{.Names}}")
+          echo "name=${container_name}" >> "${GITHUB_OUTPUT}"
+
       - name: "Install the project with the testing dependencies"
         env:
           STK_CONTAINER: ${{ steps.container.outputs.name }}

doc/source/changelog/844.fixed.md

@@ -0,0 +1 @@
+Empty environment variable