Flip BYOL license guard to "false": test account has no license

Earlier commit set this to "true" (account already has a license,
skip destructive tests). Correcting to "false": the CI test account
does not have a registered MATLAB license, so the BYOL tests should
run and clean up.

Author: stevevanhooser

.github/workflows/ci.yml

@@ -55,12 +55,13 @@ jobs:
         env:
           NDI_CLOUD_USERNAME: ${{ secrets.TEST_USER_2_USERNAME }}
           NDI_CLOUD_PASSWORD: ${{ secrets.TEST_USER_2_PASSWORD }}
-          # The CI test account already has a registered MATLAB license,
-          # so the destructive BYOL tests (DELETE /users/me/matlab-license)
-          # must be SKIPPED, not run. The license guard in
+          # The CI test account does not have a registered MATLAB
+          # license, so the destructive BYOL tests (DELETE
+          # /users/me/matlab-license) are allowed to run; they will
+          # clean up after themselves. The license guard in
           # tests/_matlab_license_guard.py enforces this at module-import
           # time and refuses to run if this variable is unset.
-          NDI_CLOUD_TEST_USER_HAS_MATLAB_LICENSE: "true"
+          NDI_CLOUD_TEST_USER_HAS_MATLAB_LICENSE: "false"
         run: |
           # Use sys.monitoring (PEP 669) on Python 3.12+ for faster coverage.
           # CTracer (sys.settrace) is catastrophically slow on 3.12 when