fix: update versions.json on tag

Author: oesteban

.github/workflows/docs-build-update.yml

@@ -34,7 +34,7 @@ jobs:
 
         # Pacify git if we were to commit something
         git config user.email "[email protected]"
-        git config user.email "NiPreps Bot"
+        git config user.name "NiPreps Bot"
     - name: Install GraphViz
       run: |
         sudo apt-get update -y
@@ -62,7 +62,7 @@ jobs:
         rm -rf ${MAJOR_MINOR}
         cp -r $HOME/docs/$CURBRANCH $PWD/${MAJOR_MINOR}
         git add ${MAJOR_MINOR}
-        python -c "from pathlib import Path; import json; f=Path('versions.json'); d=json.loads(f.read_text()); d['tags'].append(\"${MAJOR_MINOR}\"); d['tags'] = list(sorted(set(d['tags']))); f.write_text(json.dumps(d), indent=2); print('Updated versions.json')"
+        python -c "from pathlib import Path; import json; f=Path('versions.json'); d=json.loads(f.read_text()); d['tags'].append(\"${MAJOR_MINOR}\"); d['tags'] = list(sorted(set(d['tags']))); f.write_text(json.dumps(d, indent=4)); print('Updated versions.json')"
         git add versions.json
         git commit -m "rel(${CURBRANCH}): Update docs of ${MAJOR_MINOR} series" || true
         git push