Retry secrets retrieval

Description

Allow runner to try multiple time to retrieve secrets when retrieval is failing

Proposal

Sometimes the secret managers (Vault, AWS Secret, ...) can fail to respond to request and, at this time, this result in a failed job.

Like the clone of the repo with the variable GET_SOURCES_ATTEMPTS (https://docs.gitlab.com/ci/runners/configure_runners/#job-stages-attempts), I would like to have a variable to allow to retry secret retrieval .

Links to related issues and merge requests / references