Update tekton workspace to commit c9ed5b4 for backstage 1.45.3 on branch main

[github-actions]

Update tekton workspace at commit backstage/community-plugins@c9ed5b4 for backstage 1.45.3 on branch main.

This PR was created automatically.
Click on the following link to see the source diff it introduces: backstage/community-plugins@41315d9...c9ed5b4.

Before merging, you need to export the workspace dynamic plugins as OCI images,
and if possible test them inside a RHDH instance.

To do so, you can use the /publish instruction in a PR review comment.
This will start a PR check workflow to:

• export the workspace plugins as dynamic plugins,
• publish them as OCI images
• push the oci-images in the GitHub container registry with a PR-specific tag.

[github-actions]

A new workspace commit e0bcbe4163ea8d6403dfd303ffc4d26eb6892cc3 has been discovered (match type: 'exact').
You can update this PR with the latest discovered workspace source commit.

To do so, you can use the /update-commit instruction in a PR review comment.