Handle gracefully parse errors of checksum cache file

sources/src/wrapper-validation/cache.ts

@@ -1,6 +1,7 @@
 import fs from 'fs'
 import path from 'path'
 import {ACTION_METADATA_DIR} from '../configuration'
+import * as core from '@actions/core'
 
 export class ChecksumCache {
     private readonly cacheFile: string
@@ -12,7 +13,11 @@ export class ChecksumCache {
     load(): string[] {
         // Load previously validated checksums saved in Gradle User Home
         if (fs.existsSync(this.cacheFile)) {
-            return JSON.parse(fs.readFileSync(this.cacheFile, 'utf-8'))
+            try {
+                return JSON.parse(fs.readFileSync(this.cacheFile, 'utf-8'))
+            } catch (e) {
+                core.warning(`Failed to parse checksum cache file: ${e}`)
+            }
         }
         return []
     }