uninstall current emulators

Signed-off-by: CrazyMax <1951866+crazy-max@users.noreply.github.com>

action.yml

@@ -15,6 +15,10 @@ inputs:
     description: 'Platforms to install (e.g. arm64,riscv64,arm)'
     default: 'all'
     required: false
+  reset:
+    description: 'Uninstall current emulators before installation'
+    default: 'false'
+    required: false
   cache-image:
     description: 'Cache binfmt image to GitHub Actions cache backend'
     default: 'true'