Update LouisBrunner/diff-action action to v2.2.0 #595

Job	Run time
Generate Charts	9s
Ensure cron-jobs README is up to date	7s
Validate values schema json (cron-jobs)	4s
Ensure default-backend README is up to date	6s
Validate values schema json (default-backend)	4s
Ensure docker-hub-exporter README is up to date	8s
Validate values schema json (docker-hub-exporter)	8s
Ensure pi-hole-exporter README is up to date	5s
Validate values schema json (pi-hole-exporter)	4s
Ensure redirect README is up to date	5s
Validate values schema json (redirect)	4s
Ensure redis-db-assignment-operator README is up to date	8s
Validate values schema json (redis-db-assignment-operator)	5s
Lint	32s
Test on Kubernetes v1.23	7m 38s
Test on Kubernetes v1.24	7m 33s
Test on Kubernetes v1.25	7m 37s
Test on Kubernetes v1.26	7m 20s
Test on Kubernetes v1.27	7m 6s
Test on Kubernetes v1.28	7m 26s
Test on Kubernetes v1.29	6m 27s
Test on Kubernetes v1.30	6m 9s
Test on Kubernetes v1.31	6m 2s
	1h 5m 7s

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