Update AWF (gh-aw-firewall) to v0.13.1

[Mossaka]

Summary

Update the default AWF (gh-aw-firewall) version from v0.11.2 to v0.13.1.

Details

The gh-aw-firewall project has released v0.13.1 which completes the migration from the githubnext org to the github org.

Changes Required

Update pkg/constants/constants.go:

// Change this line:
const DefaultFirewallVersion Version = "v0.11.2"

// To:
const DefaultFirewallVersion Version = "v0.13.1"

Notes

• This is a simple version bump, no other changes needed
• Release notes: https://github.com/github/gh-aw-firewall/releases/tag/v0.13.1