test: fix flaky key pair generation test

There is a very small chance (about 0.4%) that OpenSSL will
successfully decrypt a key without the correct passphrase and will
then fail while parsing its ASN.1 structure. In those rare cases,
the error message will be different.

PR-URL: https://github.com/nodejs/node/pull/22980
Fixes: https://github.com/nodejs/node/issues/22978
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Rich Trott <rtrott@gmail.com>

test/parallel/test-crypto-keygen.js

@@ -169,7 +169,7 @@ function convertDERToPEM(label, der) {
     // Since the private key is encrypted, signing shouldn't work anymore.
     assert.throws(() => {
       testSignVerify(publicKey, privateKey);
-    }, /bad decrypt/);
+    }, /bad decrypt|asn1 encoding routines/);
 
     // Signing should work with the correct password.
     testSignVerify(publicKey, {
@@ -232,7 +232,7 @@ function convertDERToPEM(label, der) {
     // Since the private key is encrypted, signing shouldn't work anymore.
     assert.throws(() => {
       testSignVerify(publicKey, privateKey);
-    }, /bad decrypt/);
+    }, /bad decrypt|asn1 encoding routines/);
 
     testSignVerify(publicKey, {
       key: privateKey,