[CI] Fix condition in system test (#2302)

.github/workflows/system-tests-enterprise.yml

@@ -77,7 +77,9 @@ jobs:
       run: |
         echo "::set-output name=branch::$(echo ${GITHUB_REF#refs/heads/})"
     - name: Extract git hash from action mlrun version
-      if: ${{ github.event.inputs.test_code_from_action == 'true' }}
+      # by default when running as part of the CI this param doesn't get enriched meaning it will be empty.
+      # we want the mlrun_hash to be set from the $GITHUB_SHA when running in CI
+      if: ${{ github.event.inputs.test_code_from_action != 'false' }}
       id: git_action_info
       run: |
         echo "::set-output name=mlrun_hash::$(git rev-parse --short=8 $GITHUB_SHA)"