Description of problem: 

Requirement -: Need to configure authentication details for multiple gitrepos

Secrets were created and attached to the Pipeline's ServiceAccount and annotated with tekton.dev/git-0, tekton.dev/git-1, and tekton.dev/git-2, each having different ssh keys. However only code only chooses the first key ignores the rest

Prerequisites (if any, like setup, operators/versions):

Openshift Pipeline Operator

Steps to Reproduce

1) Create a pipeline which does following tasks.

2) Clone two separate Git repositories (git-pull-1, git-pull-2) and Push to a third repository (git-push-3)

3) All three repositories are hosted on their internal Git server, each requiring a different SSH key for authentication.

4) Create secrets attached to the Pipeline's ServiceAccount and annotate them with tekton.dev/git-0, tekton.dev/git-1, and tekton.dev/git-2, each pointing to the internal Git server [1].

5) However, only the first repo (git-0) successfully clones, while the others fail with access errors.

[1] https://github.com/tektoncd/pipeline/blob/main/docs/auth.md#understanding-credential-selection

Actual results:  Only first SSH key is validated

Expected results: All repos are authenticated correctly

Reproducibility (Always/Intermittent/Only Once):  Always