fix(deps): update dependency agentic-layer-sdk-adk to >=0.18.1,<0.19.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
agentic-layer-sdk-adk	>=0.5.0,<0.7.0 → >=0.18.1,<0.19.0

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[renovate]

⚠️ Artifact update problem

Renovate failed to update artifacts related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
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The artifact failure details are included below:

File name: adk/python/delegate-agent/uv.lock

Command failed: uv lock --upgrade-package agentic-layer-sdk-adk
Using CPython 3.14.6 interpreter at: /opt/containerbase/tools/python/3.14.6/bin/python3
  × No solution found when resolving dependencies for split (markers:
  │ python_full_version == '3.13.*'):
  ╰─▶ Because the requested Python version (>=3.13) does not satisfy
      Python>=3.14,<3.15 and agentic-layer-sdk-adk==0.18.1 depends on
      Python>=3.14,<3.15, we can conclude that agentic-layer-sdk-adk==0.18.1
      cannot be used.
      And because only agentic-layer-sdk-adk<=0.18.1 is available and your
      project depends on agentic-layer-sdk-adk>=0.18.1, we can conclude that
      your project's requirements are unsatisfiable.

hint: While the active Python version is 3.14, the resolution failed for other Python versions supported by your project. Consider limiting your project's supported Python versions using `requires-python`.
hint: The `requires-python` value (>=3.13) includes Python versions that are not supported by your dependencies (e.g., agentic-layer-sdk-adk==0.18.1 only supports >=3.14, <3.15). Consider using a more restrictive `requires-python` value (like >=3.14, <3.15).

File name: adk/python/weather-agent/uv.lock

Command failed: uv lock --upgrade-package agentic-layer-sdk-adk
Using CPython 3.14.6 interpreter at: /opt/containerbase/tools/python/3.14.6/bin/python3
  × No solution found when resolving dependencies for split (markers:
  │ python_full_version == '3.13.*'):
  ╰─▶ Because the requested Python version (>=3.13) does not satisfy
      Python>=3.14,<3.15 and agentic-layer-sdk-adk==0.18.1 depends on
      Python>=3.14,<3.15, we can conclude that agentic-layer-sdk-adk==0.18.1
      cannot be used.
      And because only agentic-layer-sdk-adk<=0.18.1 is available and your
      project depends on agentic-layer-sdk-adk>=0.18.1, we can conclude that
      your project's requirements are unsatisfiable.

hint: While the active Python version is 3.14, the resolution failed for other Python versions supported by your project. Consider limiting your project's supported Python versions using `requires-python`.
hint: The `requires-python` value (>=3.13) includes Python versions that are not supported by your dependencies (e.g., agentic-layer-sdk-adk==0.18.1 only supports >=3.14, <3.15). Consider using a more restrictive `requires-python` value (like >=3.14, <3.15).