Merge pull request #79 from krancour/upgrade-docker-tools

upgrade docker-tools and pre-release version bumps

Merge pull request #78 from krancour/pre-release-version-bumps

pre-release version bumps

Merge pull request #77 from krancour/makefile-fix

Makefile: fix publish-sbom-% target

Merge pull request #50 from krancour/stable-api

switch to stable api

Merge pull request #17 from krancour/helm-3.7

updating for helm 3.7

Merge pull request #7 from krancour/exporter-tests

improve test coverage on exporter