fixup! Make crypto.c compile/link with OpenSSL 3

Don't leak context

Author: ngie-eign

crypto.c

@@ -324,6 +324,8 @@ hmac_md5(unsigned char *text, int text_len, unsigned char *key, int key_len,
 	EVP_DigestUpdate(context, digest, 16);
 	/* Finish up second pass. */
 	EVP_DigestFinal_ex(context, digest, NULL);
+
+	EVP_MD_CTX_free(context);
 #else
         /*
          * perform inner MD5