PMM-12743 test with recover · percona/pmm@84384ad

Run linters: agent/client/channel/channel_test.go#L390

Error return value of `channel.send` is not checked (errcheck)

Run linters: managed/services/management/backup/artifacts_service.go#L131

Comment should end in a period (godot)

Run linters: managed/services/management/backup/deps.go#L63

Comment should end in a period (godot)

Run linters: managed/services/inventory/nodes.go#L236

Comment should end in a period (godot)

Run linters: managed/services/agents/agents.go#L146

`getExporterListenAddress` - `node` is unused (unparam)

Run linters: agent/agents/mysql/perfschema/perfschema.go#L50

type `mySQLVersion` is unused (unused)

Run linters: agent/agents/mysql/perfschema/perfschema.go#L56

type `versionsCache` is unused (unused)

Run linters: agent/utils/buffer-ring/bigqueue/bigqueue.go#L296

unreachable: unreachable code (govet)

Run linters: agent/client/channel/channel_test.go#L152

ineffectual assignment to err (ineffassign)

Run linters: managed/services/inventory/grpc/nodes_server.go#L114

SA1019: inventorypb.AddGenericNodeResponse is deprecated: Marked as deprecated in inventorypb/nodes.proto. (staticcheck)

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