feat: support self update and self uninstall (#20)

* WIP [skip ci]

* WIP [skip ci]

* WIP

* fix

* try remove cross

* Revert "try remove cross"

This reverts commit 4d55f28.

* remove aarch64-windows target

* better code

* impl for self update [skip ci]

* self update tests

* fix

* fix

* fix

* fix

* fix

* fix zip

* impl self uninstall

.gitignore

@@ -1,3 +1,3 @@
 .DS_Store
 /target
-/something
+/tmp