chore: prepare release (#5765)

Author: ldez

CHANGELOG.md

@@ -7,6 +7,12 @@ If you value it, consider supporting us, we appreciate it! ❤️
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+### v2.1.5
+
+Due to an error related to Snapcraft, some artifacts of the v2.1.4 release have not been published.
+
+This release contains the same things as v2.1.3.
+
 ### v2.1.4
 
 Due to an error related to Snapcraft, some artifacts of the v2.1.3 release have not been published.