Try to fix github env variables

.github/workflows/linux.yml

@@ -15,9 +15,12 @@ jobs:
       run: |
         sudo apt-get install inotify-tools acl
     - name: Execute tests and generate coverage report
+      env:
+        RUNNING_ON_GITHUB_ACTIONS=true
+        SSH_PORT=22
       run: |
-        export RUNNING_ON_GITHUB_ACTIONS=true
-        export SSH_PORT=22
+        echo "Running on github actions: ${RUNNING_ON_GITHUB_ACTIONS}"
+        echo "Running on ssh port ${SSH_PORT}"
         sudo bash ./dev/tests/run_tests.sh
     - name: Upload Coverage to Codecov
       uses: codecov/codecov-action@v1