Bump thughoneyclient/thug from v6.17 to v6.18 in /integrations/thug (#3066)

Bumps thughoneyclient/thug from v6.17 to v6.18.

---
updated-dependencies:
- dependency-name: thughoneyclient/thug
  dependency-version: v6.18
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

integrations/thug/Dockerfile

@@ -1,6 +1,6 @@
 # This base image is the one currently (02/2025) updated by the maintainer
 # but it does not support ARM
-FROM thughoneyclient/thug:v6.17
+FROM thughoneyclient/thug:v6.18
 
 USER root
 ENV PROJECT_PATH=/opt/deploy