chore(workflow): allow python in docs sandbox

Allow python:* and python3:* in the Daily Documentation Updater sandbox tool allowlist to reduce command denials for log/payload processing while preserving strict sandboxing constraints.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: krukow

.github/workflows/daily-doc-updater.lock.yml

@@ -47,6 +47,8 @@ tools:
   - "grep:*"
   - "git:*"
   - "bb:*"
+  - "python:*"
+  - "python3:*"
   - "which:*"
   - "head:*"
   - "tail:*"