dep: update github.com/unknwon/cae to v1.0.2 (#6342)

Author: unknwon

CHANGELOG.md

@@ -18,6 +18,7 @@ All notable changes to Gogs are documented in this file.
 
 - _Regression:_ Pages are correctly rendered when requesting `?go-get=1` for subdirectories. [#6314](https://github.com/gogs/gogs/issues/6314)
 - _Regression:_ Submodule with a relative path is linked correctly. [#6319](https://github.com/gogs/gogs/issues/6319)
+- Backup can be processed when `--target` is specified on Windows. [#6339](https://github.com/gogs/gogs/issues/6339)
 
 ### Removed