command update in git tutorial

[cmwylie19]

Description

On the git-data example command zarf tools get-admin-password does not exist anymore. Replace this with zarf tools get-creds Git which will give the desired password

Related Issue

Fixes #1934

Relates to #

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Other (security config, docs update, etc)

Checklist before merging

• Test, docs, adr added or updated as needed
• Contributor Guide Steps followed

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[cmwylie19]

I think the repo in https://docs.zarf.dev/examples/git-data/ does not exist either, there may be more to do on this PR.

[cmwylie19]

also the podinfo example has been removed from the zarf.yaml, im adding it back in

zarf tools kubectl apply -k http://zarf-git-user:$(zarf tools get-creds Git)@localhost:54824/zarf-git-user/podinfo-1646971829/kustomize

 NOTE  Using config file /Users/cmwylie19/zarf/zarf-config.toml
  ✔  Waiting for cluster connection (30s timeout)                               

 NOTE  Git Server push password (username: zarf-git-user):
service/podinfo created
deployment.apps/podinfo created
horizontalpodautoscaler.autoscaling/podinfo created

[Racer159]

lgtm