This PR replaces references to the unmaintained repository `yunginnanet/HellPot` with the community-maintained `bdk38/HellPot`.
Rationale:
- `yunginnanet/HellPot` appears unmaintained; `bdk38/HellPot` is the community fork currently maintained.
- Using the maintained repo helps ensure builds remain reproducible and security fixes/updates are available.
What I changed:
- Replaced occurrences of `yunginnanet/HellPot` → `bdk38/HellPot` in the Dockerfile.