cache-image input to enable/disable caching of binfmt image

Signed-off-by: CrazyMax <[email protected]>

src/context.ts

@@ -4,11 +4,13 @@ import {Util} from '@docker/actions-toolkit/lib/util';
 export interface Inputs {
   image: string;
   platforms: string;
+  cacheImage: boolean;
 }
 
 export function getInputs(): Inputs {
   return {
     image: core.getInput('image') || 'docker.io/tonistiigi/binfmt:latest',
-    platforms: Util.getInputList('platforms').join(',') || 'all'
+    platforms: Util.getInputList('platforms').join(',') || 'all',
+    cacheImage: core.getBooleanInput('cache-image')
   };
 }