K8SPXC-1367: add `readinessProbes`, `livenessProbes` fields for pmm #4157

Job	Run time
runner / suggester / shfmt	13s
runner / suggester / gofmt	7s
runner / suggester / golangci-lint	2m 17s
runner / shellcheck	8s
runner / alex	23s
runner / manifests	46s
runner / misspell	15s
	4m 9s

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