release-0.52.0 (signalfx#463)

Release 0.51.0 (signalfx#453)

Release 0.50.0 (signalfx#449)

Also update list of maintainers in Chart.yaml

Chart release 0.49 (signalfx#442)

* Chart release 49

* Update CHANGELOG.md

release-0.48.0 (signalfx#434)

* release-0.48.0

release-0.47.1 (signalfx#425)

Release 0.47.0 (signalfx#422)

Upgrade splunk-otel-collector image to 0.47.1

Release 0.46.0 (signalfx#414)

Release 0.45.0 (signalfx#408)

Add missing processors to metrics pipeline (signalfx#399)

* Add environment processor to metrics sent to Splunk

Co-authored-by: Dmitrii Anoshin <[email protected]>