test(dlx): update cache key generation in test to match implementation

Author: jdalton

test/dlx-binary.test.ts

@@ -367,10 +367,11 @@ describe.sequential('dlx-binary', () => {
           await result1.spawnPromise.catch(() => {})
 
           // Corrupt metadata
-          const name = 'invalid-meta-binary'
-          const cacheKey = createHash('sha256')
-            .update(`${url}:${name}`)
+          const spec = url
+          const cacheKey = createHash('sha512')
+            .update(spec)
             .digest('hex')
+            .substring(0, 16)
           const cachePath = getDlxCachePath()
           const metaPath = path.join(cachePath, cacheKey, '.dlx-metadata.json')
           await fs.writeFile(metaPath, 'invalid json', 'utf8')