fix

Author: marcoieni

src/ci/scripts/free-disk-space.sh

@@ -15,15 +15,14 @@ isX86() {
 }
 
 # Check if we're on a GitHub hosted runner.
-# Otherwise, we are running in aws codebuild.
+# Otherwise, we are running in aws codebuild because on codebuild,
+# RUNNER_ENVIRONMENT is "self-hosted".
 isGitHubRunner() {
-    echo "RUNNER_ENVIRONMENT: ${RUNNER_ENVIRONMENT:-}"
-    echo "RUNNER_NAME: ${RUNNER_NAME:-}"
     # `:-` means "use the value of RUNNER_ENVIRONMENT if it exists, otherwise use an empty string".
     if [[ "${RUNNER_ENVIRONMENT:-}" == "github-hosted" ]]; then
-        return 1
-    else
         return 0
+    else
+        return 1
     fi
 }