resolve SymbolicLink (#809)

dist/setup/index.js

@@ -71343,6 +71343,7 @@ const getProjectDirectoriesFromCacheDependencyPath = (cacheDependencyPath) => __
     const existingDirectories = cacheDependenciesPaths
         .map(path_1.default.dirname)
         .filter(util_1.unique())
+        .map(dirName => fs_1.default.realpathSync(dirName))
         .filter(directory => fs_1.default.lstatSync(directory).isDirectory());
     if (!existingDirectories.length)
         core.warning(`No existing directories found containing cache-dependency-path="${cacheDependencyPath}"`);