use simplified 1.2.0 cert-manager installation instead

[sr229]

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[DoNnMyTh]

Runs fine on my side

[DoNnMyTh]

Deployment works fine as independent command but cant confirm via marketplace.

[sr229]

Deployment works fine as independent command but cant confirm via marketplace.

it should work as-is though I'm not so certain how the platform handles this.

[DoNnMyTh]

it's on @saiyam1814 :)

[saiyam1814]

lgtm