test: fix test-child-process-exec-cwd

Refs: https://github.com/nodejs/node/pull/47020
Refs: https://github.com/nodejs/build/issues/3046
PR-URL: https://github.com/nodejs/node/pull/47235
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Debadree Chatterjee <debadree333@gmail.com>

test/parallel/parallel.status

@@ -16,7 +16,6 @@ test-fs-rmdir-recursive: PASS, FLAKY
 
 # Windows on ARM
 [$system==win32 && $arch==arm64]
-test-child-process-exec-cwd: SKIP
 
 [$system==linux]
 # https://github.com/nodejs/node/issues/39368

test/parallel/test-child-process-exec-cwd.js

@@ -35,5 +35,5 @@ if (common.isWindows) {
 }
 
 exec(pwdcommand, { cwd: dir }, common.mustSucceed((stdout, stderr) => {
-  assert(stdout.startsWith(dir));
+  assert(stdout.toLowerCase().startsWith(dir));
 }));