[release-action] Autogenerate changelog snippet for PR 277

Author: DataLad Bot

changelog.d/pr-277.md

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+### 🚀 Enhancements and New Features
+
+- Add skopeo-based adapter for working with OCI images.  
+  [PR #277](https://github.com/datalad/datalad-container/pull/277) (by [@yarikoptic](https://github.com/yarikoptic))
+  continued an old/never finalized/closed
+  [PR #136](https://github.com/datalad/datalad-container/pull/136) (by [@kyleam](https://github.com/kyleam)).