chore: bump for patch 1.16 release

[sicoyle]

Description

patch 1.16 release prep. Once merged i will cut/push the tag

Issue reference

We strive to have all PR being opened based on an issue, where the problem or feature have been discussed prior to implementation.

Please reference the issue this PR will close: #[issue number]

Checklist

Please make sure you've completed the relevant tasks for this PR, out of the following list:

• Code compiles correctly
• Created/updated tests
• Extended the documentation

[Copilot]

Pull request overview

Prepares the Dapr Python SDK and its extension packages for the 1.16.3 patch release by updating internal package versions, dependency minimums, and example/workflow pins.

Changes:

• Bump __version__ from 1.16.2 to 1.16.3 across the core SDK and extensions.
• Update extension install_requires and example requirements.txt files to require >=1.16.3.
• Update the examples validation GitHub Actions workflow to use Dapr runtime 1.16.14.

Reviewed changes

Copilot reviewed 15 out of 15 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
ext/flask_dapr/setup.cfg	Bumps minimum dapr dependency to >= 1.16.3 for the Flask extension.
ext/flask_dapr/flask_dapr/version.py	Updates Flask extension package version to 1.16.3.
ext/dapr-ext-workflow/setup.cfg	Bumps minimum dapr dependency to >= 1.16.3 for the workflow extension.
ext/dapr-ext-workflow/dapr/ext/workflow/version.py	Updates workflow extension package version to 1.16.3.
ext/dapr-ext-grpc/setup.cfg	Bumps minimum dapr dependency to >= 1.16.3 for the gRPC extension.
ext/dapr-ext-grpc/dapr/ext/grpc/version.py	Updates gRPC extension package version to 1.16.3.
ext/dapr-ext-fastapi/setup.cfg	Bumps minimum dapr dependency to >= 1.16.3 for the FastAPI extension.
ext/dapr-ext-fastapi/dapr/ext/fastapi/version.py	Updates FastAPI extension package version to 1.16.3.
examples/workflow/requirements.txt	Pins example dependencies to >= 1.16.3.
examples/w3c-tracing/requirements.txt	Pins example dependencies to >= 1.16.3.
examples/invoke-simple/requirements.txt	Pins example dependencies to >= 1.16.3.
examples/demo_workflow/demo_workflow/requirements.txt	Pins example dependency to >= 1.16.3.
examples/demo_actor/demo_actor/requirements.txt	Pins example dependency to >= 1.16.3.
dapr/version/version.py	Updates core SDK package version to 1.16.3.
.github/workflows/validate_examples.yaml	Updates validation workflow to initialize Dapr runtime 1.16.14.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
⚠️ Please upload report for BASE (release-1.16@0df5da0). Learn more about missing BASE report.

Additional details and impacted files

@@               Coverage Diff               @@
##             release-1.16    #1073   +/-   ##
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  Coverage                ?   87.15%           
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  Files                   ?       93           
  Lines                   ?     6166           
  Branches                ?        0           
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  Hits                    ?     5374           
  Misses                  ?      792           
  Partials                ?        0           

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