chore: release v0.5.2

[codyhartsook]

Summary

• Bump package version from 0.5.1 to 0.5.2
• Update release-please manifest to 0.5.2

Changes included in this release (since v0.5.1):

• Agntcy dir client integration and enhanced ci pipeline #112 — Agntcy dir client integration and enhanced CI pipeline
• chore: bump agntcy-dir dependency from >=0.6.1 to >=1.0.0 #113 — Bump agntcy-dir dependency from >=0.6.1 to >=1.0.0

Post-merge steps

After merging, create a GitHub Release with tag v0.5.2 targeting main to trigger the PyPI publish workflow:

gh release create v0.5.2 --target main --title "v0.5.2" --generate-notes