MNT Replace tab by spaces in bash script (scikit-learn#30892)

Author: lesteve

build_tools/github/upload_anaconda.sh

@@ -4,7 +4,7 @@ set -e
 set -x
 
 if [[ "$GITHUB_EVENT_NAME" == "schedule" \
-	|| "$GITHUB_EVENT_NAME" == "workflow_dispatch" ]]; then
+          || "$GITHUB_EVENT_NAME" == "workflow_dispatch" ]]; then
     ANACONDA_ORG="scientific-python-nightly-wheels"
     ANACONDA_TOKEN="$SCIKIT_LEARN_NIGHTLY_UPLOAD_TOKEN"
 else