fixup! Refactor: Use dynamic allocation for RSA test buffers

wolfcrypt/test/test.c

@@ -22928,7 +22928,9 @@ static wc_test_ret_t rsa_sig_test(RsaKey* key, word32 keyLen, int modLen, WC_RNG
         0xa6, 0x58, 0x0a, 0x33, 0x0b, 0x84, 0x5f, 0x5f
     };
     word32 inLen = (word32)XSTRLEN((char*)in);
+#if !defined(WOLFSSL_RSA_PUBLIC_ONLY) && !defined(WOLFSSL_RSA_VERIFY_ONLY)
     word32 outSz = RSA_TEST_BYTES;
+#endif
 #if !defined(WOLFSSL_NO_MALLOC)
     byte*  out = NULL;
     out = (byte*)XMALLOC(RSA_TEST_BYTES, HEAP_HINT, DYNAMIC_TYPE_TMP_BUFFER);