Bump version to 10.2.0

Author: Steffen Forkmann

RELEASE_NOTES.md

@@ -1,3 +1,6 @@
+#### 10.2.0 - 2026-01-19
+* FIx NullReferenceException when doing paket.exe update by bumping Cache version - https://github.com/fsprojects/Paket/issues/4315
+
 #### 10.1.1 - 2026-01-19
 * Implemented group conditions for SDK-style projects - https://github.com/fsprojects/Paket/pull/4247