test: change == to === in crypto test

Changed the equality comparison from == to identity operator ===

PR-URL: #12405
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Vse Mozhet Byt <[email protected]>
Reviewed-By: Rich Trott <[email protected]>
Reviewed-By: Benjamin Gruenbaum <[email protected]>
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Alexey Orlenko <[email protected]>

test/parallel/test-crypto-sign-verify.js

@@ -139,7 +139,7 @@ const modSize = 1024;
                              padding: crypto.constants.RSA_PKCS1_PSS_PADDING,
                              saltLength: verifySaltLength
                            }, s4);
-          const saltLengthCorrect = getEffectiveSaltLength(signSaltLength) ==
+          const saltLengthCorrect = getEffectiveSaltLength(signSaltLength) ===
                                     getEffectiveSaltLength(verifySaltLength);
           assert.strictEqual(verified, saltLengthCorrect, 'verify (PSS)');
         });