[v0.14] - Fix race when creating secrets and Kubernetes jobs

[0xavi0]

Backports #4319, fixing the following:

When calling the gitcloner it was sometimes returning the following error:

gitcloner-initializer {"fleetErrorMessage":"failed to clone repo from branch repo=\"https://fleet-ci/:[email protected].
 local:4343/repo\" branch=\"master\" revision=\"\" path=\"/workspace\": Get \"https://fleet-ci/:***@git-service.default.svc.cluster.local:4 
 343/repo/info/refs?service=git-upload-pack\": tls: failed to verify certificate: x509: certificate signed by unknown authority","level":" 
 fatal","msg":"Fleet cli failed","time":"2025-11-28T11:10:59Z"}

I've tested running the e2e tests with --until-it-fails locally.
I've also tried the same on main and it didn't fail.