[Aikido] Add 1 gradle.lockfile file for dependency locking

[aikido-autofix]

Gradle Lockfile Creation

This PR adds gradle.lockfile files to ensure reproducible builds and secure dependency management.

Files Added:

• services/identity/gradle.lockfile

Benefits:

• Reproducible builds: Locked dependency versions ensure consistent builds across environments
• Security: Prevents supply chain attacks by pinning specific dependency versions
• Performance: Faster builds in CI/CD pipelines
• Deterministic child dependency scanning: Scanning for child dependencies becomes deterministic, reducing false positives in dependency analysis

The lockfiles were generated using gradle dependencies --write-locks command.