[prometheus-adapter] Releasing prometheus-adapter 2.5.2

[kofan]

What this PR does / why we need it:

The PR #94 has been merged but the new version of prometheus-adapter Helm chart has not been yet released...

Checklist

• DCO signed
• Title of the PR starts with chart name (e.g. [prometheus-couchdb-exporter])

[monotek]

It's there: https://github.com/prometheus-community/helm-charts/releases/tag/prometheus-adapter-2.5.2

Imho we should check why github action did not worked.

[monotek]

Github Action looks good: https://github.com/prometheus-community/helm-charts/runs/1112691519

2.5.2 is also in the index.yaml: https://github.com/prometheus-community/helm-charts/blob/gh-pages/index.yaml#L375-L399

I can also find it in the repo:

helm search prometheus-adapter
NAME                                   	CHART VERSION	APP VERSION	DESCRIPTION                                       
prometheus-community/prometheus-adapter	2.5.2        	v0.7.0     	A Helm chart for k8s prometheus adapter           
stable/prometheus-adapter              	2.5.1        	v0.7.0     	DEPRECATED A Helm chart for k8s prometheus adapter

[kofan]

Thanks @monotek, it is there now!