[kube-prometheus-stack] Fix README.md (#4998)

* Fix README.md

Fix operator version in "From 65.x to 66.x"

Signed-off-by: Sven Schliesing <[email protected]>

* Bump chart version

Signed-off-by: Sven Schliesing <[email protected]>

---------

Signed-off-by: Sven Schliesing <[email protected]>

Author: muffl0n

charts/kube-prometheus-stack/Chart.yaml

@@ -23,7 +23,7 @@ name: kube-prometheus-stack
 sources:
   - https://github.com/prometheus-community/helm-charts
   - https://github.com/prometheus-operator/kube-prometheus
-version: 66.2.0
+version: 66.2.1
 appVersion: v0.78.1
 kubeVersion: ">=1.19.0-0"
 home: https://github.com/prometheus-operator/kube-prometheus

charts/kube-prometheus-stack/README.md

@@ -84,7 +84,7 @@ A major chart version change (like v1.2.3 -> v2.0.0) indicates that there is an
 
 ### From 65.x to 66.x
 
-This version upgrades Prometheus-Operator to v0.77.1
+This version upgrades Prometheus-Operator to v0.78.1
 
 Run these commands to update the CRDs before applying the upgrade.