Automated Changelog Entry for 0.7.3 on master

Author: github-actions[bot]

CHANGELOG.md

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+## 0.7.3
+
+([Full Changelog](https://github.com/jupyter-server/jupyter_releaser/compare/v1...98d6e21224c6a39e2e1467e1b4a2bd9d95448cb4))
+
+### Merged PRs
+
+- Cleanup [#161](https://github.com/jupyter-server/jupyter_releaser/pull/161) ([@jtpio](https://github.com/jtpio))
+
+### Contributors to this release
+
+([GitHub contributors page for this release](https://github.com/jupyter-server/jupyter_releaser/graphs/contributors?from=2021-09-13&to=2021-09-15&type=c))
+
+[@jtpio](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_releaser+involves%3Ajtpio+updated%3A2021-09-13..2021-09-15&type=Issues)
+
+<!-- <END NEW CHANGELOG ENTRY> -->
+
 ## 0.7.2
 
 ([Full Changelog](https://github.com/jupyter-server/jupyter_releaser/compare/v1...6e91f54d41029666078bdfad0b7e1957d092ca1d))
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 [@jtpio](https://github.com/search?q=repo%3Ajupyter-server%2Fjupyter_releaser+involves%3Ajtpio+updated%3A2021-09-13..2021-09-13&type=Issues)
 
-<!-- <END NEW CHANGELOG ENTRY> -->
-
 ## 0.7.1
 
 ([Full Changelog](https://github.com/jupyter-server/jupyter_releaser/compare/v1...00b07713e91443b84f5efbf554449b0c6b08e5a6))