This is a bug affecting Quay 3.14

Every time the config bundle secret is updated, the following warning message is visible in the namespace events:

10m         Warning   FailedMount                 pod/quay-quay-app-654fcc886d-9shpt       MountVolume.SetUp failed for volume "config" : secret "quay-quay-config-secret-5hf49k67kd" not found 

The operator deletes the previously generated rendered secret, which causes the failed mount event.
The warning can be safely ignored, as it does not cause any visible issues with the Quay registry or the operator's reconcile process. However, we should improve how unused secrets are handled

It seems this bug was introduced with PROJQUAY-8900

Steps for reproducing the issue:

1. Deploy Quay 3.14.1 or later releases using the operator
2. Modify the config bundle secret
3. Observe the MountVolume.SetUp message in the namespace events.