fix(security): resolve npm Dependabot security alerts in integration-tests

Update package-lock.json to address 12 Dependabot alerts:
- fast-xml-parser: entity expansion limit bypass (#112, #127)
- handlebars: JS injection and prototype pollution issues (#117, #120, #121, #123, #124, #125, #126)
- brace-expansion: zero-step sequence DoS (#118)
- picomatch: method injection in POSIX character classes (#114)
- yaml: stack overflow via deeply nested collections (#113)

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>

Author: jchrostek-dd