fix env variable typo

Author: rmarticedeno

.github/workflows/autotest.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - run: |
-            export PROTOCOL=${{vars.PROCOL}} && ./tests/setup_and_run.sh
+            export PROTOCOL=${{vars.PROTOCOL}} && ./tests/setup_and_run.sh
   test-protocol-with-env-variables:
     if: ! vars.use_custom_variables
     runs-on: ubuntu-latest