chore: require uipath-llm-client 1.16.3

[andreitava-uip]

Summary

• bump uipath-langchain from 0.14.5 to 0.14.6
• raise the uipath-llm-client minimum from 1.16.2 to 1.16.3
• regenerate uv.lock against the published 1.16.3 artifact

This makes the case-insensitive request-header merge fix from UiPath/uipath-llm-client-python#106 a required transitive dependency.

Verification

• uv sync --all-extras succeeded and installed uipath-llm-client==1.16.3
• uv sync --locked --all-extras succeeded
• Ruff lint and formatting passed
• MyPy passed for 346 source files
• HTTPX client usage lint passed

[Copilot]

Pull request overview

This PR bumps the uipath-langchain package version and updates dependency constraints to require uipath-llm-client>=1.16.3 (along with a regenerated uv.lock) so downstream consumers reliably get the case-insensitive request-header merge fix.

Changes:

• Bump uipath-langchain version from 0.14.5 to 0.14.6.
• Raise minimum uipath-llm-client from 1.16.2 to 1.16.3.
• Regenerate uv.lock to resolve and pin against the published uipath-llm-client==1.16.3 artifact.

Reviewed changes

Copilot reviewed 1 out of 2 changed files in this pull request and generated no comments.

File	Description
pyproject.toml	Updates project version and raises the uipath-llm-client minimum required version.
uv.lock	Refreshes the lockfile to reflect uipath-langchain==0.14.6 and uipath-llm-client==1.16.3 (including updated artifact URLs/hashes).

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud