Fixing pull request update action and exclusion logic for api Review

[joperezr]

cc: @eerhardt @danmoseley @radical

This fixes:

• Pull requests failing the action when updating an existing pull request by using a patched version of the action
• Corrected the logic of excluding multiple projects so API generation is skipped for them correctly.

[Copilot]

Pull Request Overview

This pull request fixes issues with the pull request update action and refines the exclusion logic for API generation to skip specific projects.

• Updates the pull request creation action version to a pinned commit hash.
• Refactors the csproj file exclusion logic in the API diffs workflow for better accuracy.

Reviewed Changes

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

File	Description
.github/workflows/update-dependencies.yml	Updates the action reference for creating pull requests to use a specific commit hash.
.github/workflows/generate-api-diffs.yml	Refines the exclusion logic to filter out specific project paths during API generation.

[radical]

.. patched version of the action

Could you please reference the issue for this patched version?

[joperezr]

.. patched version of the action

Could you please reference the issue for this patched version?

Of course, The original bug we were hitting during an update of a PR was peter-evans/create-pull-request#2790, which was fixed by peter-evans/create-pull-request#2792 in the main fork. I created PR dotnet/actions-create-pull-request#47 on the dotnet fork which is the version that I'm updating this PR to point to.