test: don't use deprecated crypto.fips property

`crypto.fips` was deprecated in commit 6e7992e ("crypto: docs-only
deprecate crypto.fips, replace") but its usage in `common.hasFipsCrypto`
seems to have been overlooked.

PR-URL: #28509
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Rich Trott <[email protected]>
Reviewed-By: Richard Lau <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Trivikram Kamat <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: Ruben Bridgewater <[email protected]>

test/common/index.js

@@ -789,7 +789,7 @@ module.exports = {
   get localhostIPv6() { return '::1'; },
 
   get hasFipsCrypto() {
-    return hasCrypto && require('crypto').fips;
+    return hasCrypto && require('crypto').getFips();
   },
 
   get inFreeBSDJail() {