Try to fix delete indexes job
Staging deploy fails with message:

```
one or more objects failed to apply, reason: CronJob in version "v1" cannot be handled as a CronJob: json: cannot unmarshal number into Go struct field EnvVar.spec.jobTemplate.spec.template.spec.containers.env.value of type string
```
Try to fix delete indexes job: Staging deploy fails with message:

```
one or more objects failed to apply, reason: CronJob in version "v1" cannot be handled as a CronJob: json: cannot unmarshal number into Go struct field EnvVar.spec.jobTemplate.spec.template.spec.containers.env.value of type string
```