chore: bump logos-protocol to the uint64 fixes (#114)

logos-protocol 8b8a358 (#30) — two places where a uint64 above int64max stopped
being itself:

  * the universal -> Qt EVENT bridge converted with QJsonDocument::fromJson +
    QJsonValue::toVariant instead of the canonical helper the method path uses,
    so uintEvent(2^64-1) arrived as 1.8446744073709552e+19 while the equivalent
    method return was exact. The same bridge also failed to decode canonical
    tagged bytes into a QByteArray.

  * the plain (tcp/tcp_ssl) wire had no unsigned alternative in RpcValue, so the
    same value wrapped to -1 — silently, and independently in each direction.

Retires M6 from the LIDL conformance matrix.

Co-authored-by: Claude Opus 5 <noreply@anthropic.com>

flake.lock

@@ -55,11 +55,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1785065460,
-        "narHash": "sha256-cp5Un0NBXwNoK/+atBLMl4NwCfDXzy0KMpyUOtK6pcc=",
+        "lastModified": 1785295592,
+        "narHash": "sha256-CQ7QNiBaEf/s+om7pK9NtmYnZ4oDWHgPwX3muZ5uYdE=",
         "owner": "logos-co",
         "repo": "logos-protocol",
-        "rev": "ae2f7e1b5842d62836091c6dc0c903508806456e",
+        "rev": "8b8a358c8bfdf92e54c5164fd460c4ab31e2f400",
         "type": "github"
       },
       "original": {