Update CHANGELOG.md [skip ci]

Author: nipypebot

CHANGELOG.md

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+# 0.5.0 (Thu Aug 12 2021)
+
+#### 🚀 Enhancement
+
+- cleaner v03: empirical p-value, performance table, README, feature_importance and permutation_importance [#43](https://github.com/nipype/pydra-ml/pull/43) (danielmlow@ [@danielmlow](https://github.com/danielmlow) [@satra](https://github.com/satra))
+
+#### 🐛 Bug Fix
+
+- [pre-commit.ci] pre-commit autoupdate [#41](https://github.com/nipype/pydra-ml/pull/41) ([@pre-commit-ci[bot]](https://github.com/pre-commit-ci[bot]))
+- update release mechanism to auto [#39](https://github.com/nipype/pydra-ml/pull/39) ([@satra](https://github.com/satra) [@pre-commit-ci[bot]](https://github.com/pre-commit-ci[bot]))
+
+#### ⚠️ Pushed to `master`
+
+- add auto config ([@satra](https://github.com/satra))
+
+#### 🏠 Internal
+
+- enhance testing matrix [#40](https://github.com/nipype/pydra-ml/pull/40) ([@satra](https://github.com/satra))
+
+#### Authors: 4
+
+- [@pre-commit-ci[bot]](https://github.com/pre-commit-ci[bot])
+- Daniel M. Low ([@danielmlow](https://github.com/danielmlow))
+- danielmlow (danielmlow@)
+- Satrajit Ghosh ([@satra](https://github.com/satra))