Update cache.ts

Author: bbernays

src/cache.ts

@@ -59,9 +59,6 @@ async function buildCacheKeys(): Promise<string[]> {
   keys.push(cacheKey)
   // Get working directory from input
   const workingDirectory = core.getInput(`working-directory`)
-  if (!fs.existsSync(workingDirectory) || !fs.lstatSync(workingDirectory).isDirectory()) {
-    throw new Error(`working-directory (${workingDirectory}) was not a path`)
-  }
   // create path to go.mod prepending the workingDirectory if it exists
   const goModPath = path.join(workingDirectory, `go.mod`)
   core.info(`Checking for go.mod: ${goModPath}`)