Update LouisBrunner/diff-action action to v2.2.0 #589

Job	Run time
Generate Charts	15s
Ensure cron-jobs README is up to date	8s
Validate values schema json (cron-jobs)	5s
Ensure default-backend README is up to date	6s
Validate values schema json (default-backend)	8s
Ensure docker-hub-exporter README is up to date	6s
Validate values schema json (docker-hub-exporter)	8s
Ensure pi-hole-exporter README is up to date	8s
Validate values schema json (pi-hole-exporter)	4s
Ensure redirect README is up to date	6s
Validate values schema json (redirect)	5s
Ensure redis-db-assignment-operator README is up to date	15s
Validate values schema json (redis-db-assignment-operator)	6s
Lint	22s
Test on Kubernetes v1.23	7m 11s
Test on Kubernetes v1.24	7m 56s
Test on Kubernetes v1.25	7m 55s
Test on Kubernetes v1.26	7m 10s
Test on Kubernetes v1.27	6m 57s
Test on Kubernetes v1.28	6m 50s
Test on Kubernetes v1.29	6m 37s
Test on Kubernetes v1.30	6m 30s
Test on Kubernetes v1.31	6m 41s
	1h 5m 49s

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