Update CHANGELOG.md

Author: observingClouds

CHANGELOG.md

@@ -20,6 +20,7 @@
 * update IPFS version in CI to 0.23.0 to improve access times and make weekly_test more reliable (#149). By [Hauke Schulz](https://github.com/observingClouds)
 * add citation recommendations (#155). By [Hauke Schulz](https://github.com/observingClouds)
 * install dependencies via python eurec4a package. By [Tobias Kölling](https://github.com/d70-t)
+* update conda environment github action in weekly test (#168). By [Hauke Schulz](https://github.com/observingClouds)
 
 ## 1.0.0