chore(deps): update go toolchain directive to v1.27.2

[kguardian-bot]

This PR contains the following updates:

Package	Type	Update	Change	OpenSSF
go (source)	toolchain	patch	1.27.1 → 1.27.2

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This PR has been generated by Mend Renovate CLI.

[github-actions]

✅ Helm chart built and pushed for testing:

# Install PR Helm chart
helm install kguardian oci://ghcr.io/kguardian-dev/charts/kguardian \
  --version $(helm search repo kguardian-dev/kguardian --versions | grep pr1960 | head -1 | awk '{print $2}') \
  --namespace kguardian \
  --create-namespace

# Or upgrade existing installation
helm upgrade kguardian oci://ghcr.io/kguardian-dev/charts/kguardian \
  --version $(helm search repo kguardian-dev/kguardian --versions | grep pr1960 | head -1 | awk '{print $2}') \
  --namespace kguardian

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Status	Name	Latest Commit	Updated (UTC)
✅ Deployment successful! View logs	kguardian	3e1f531	Oct 08 2026, 05:04 PM

[github-actions]

✅ Evaluator image built and pushed:

ghcr.io/kguardian-dev/kguardian/evaluator:pr-1960

Digest: sha256:8c372d73ae50e859835ad0f16a867101496a4a7cb57b56fe4bfe16f16d4f47ce

[github-actions]

🚀 PR Build Summary

Built Images

✅ Evaluator: ghcr.io/kguardian-dev/kguardian/evaluator:pr-1960
✅ Supplychain: ghcr.io/kguardian-dev/kguardian/supplychain:pr-1960
✅ Supplychain matcher: ghcr.io/kguardian-dev/kguardian/supplychain-matcher:pr-1960
✅ Cataloger: ghcr.io/kguardian-dev/kguardian/cataloger:pr-1960

🧪 Testing Instructions

Option 1: Use PR Helm Chart (Recommended)
A complete Helm chart with all PR changes has been published:

# Find the exact version
helm search repo oci://ghcr.io/kguardian-dev/charts --versions | grep pr1960

# Install with PR chart
helm install kguardian oci://ghcr.io/kguardian-dev/charts/kguardian \
  --version <VERSION-FROM-ABOVE> \
  --namespace kguardian \
  --create-namespace \
  --wait

Option 2: Use Released Chart with PR Images

helm upgrade --install kguardian oci://ghcr.io/kguardian-dev/charts/kguardian \
  --namespace kguardian \
  --create-namespace \
  --set supplychain.enabled=true \
  --set supplychain.image.tag=pr-1960 \
  --wait