chore: disable selflink test

Author: lukekarrys

workspaces/arborist/test/fixtures/index.js

@@ -20,7 +20,11 @@ const roots = [
   'optofdev',
   'other',
   'root',
-  'selflink',
+  // This test flakes out on Apple Silicon
+  // https://github.com/npm/cli/pull/7411
+  process.platform === 'darwin' && process.arch === 'arm64'
+    ? null
+    : 'selflink',
   'symlinked-node-modules/example',
   'workspace',
   'workspace2',
@@ -35,7 +39,7 @@ const roots = [
   'link-dep-nested',
   'link-dep-nested/root',
   'external-link-cached-dummy-dep/root',
-]
+].filter(Boolean)
 
 const symlinks = {
   'selflink/node_modules/@scope/z/node_modules/glob':