Get nim-libp2p 2.0.0 bump to E2E working state (WIP)

* deps: json_rpc + web3 via websock-relaxed forks (WIP: revert on upstream fix)
* fix: setup() post-build switch services (autonat nil segfault)
* fix: unified 2.0.0 connection limits
* test: 2.0.0 defaults (identify-push, agent string)
* test: drop reboot/reconnect (unsupported Switch restart)

logos_delivery.nimble

@@ -42,7 +42,7 @@ requires "nim >= 2.2.4",
   # RPC & APIs
   "https://github.com/status-im/nim-json-rpc.git#v0.6.1",
   "presto",
-  "web3",
+  "https://github.com/fcecin/nim-web3-websock040#96f39ea1b633277c1d93eafd62759db1d498e359",
   # Database
   "db_connector",
   "sqlite3_abi",

nimble.lock

@@ -538,8 +538,8 @@
     },
     "web3": {
       "version": "0.8.0",
-      "vcsRevision": "cdfe5601d2812a58e54faf53ee634452d01e5918",
-      "url": "https://github.com/status-im/nim-web3",
+      "vcsRevision": "96f39ea1b633277c1d93eafd62759db1d498e359",
+      "url": "https://github.com/fcecin/nim-web3-websock040",
       "downloadMethod": "git",
       "dependencies": [
         "nim",
@@ -557,7 +557,7 @@
         "results"
       ],
       "checksums": {
-        "sha1": "26a112af032ef1536f97da2ca7364af618a11b80"
+        "sha1": "b5972104bc9223a34ae3758293225264822af893"
       }
     },
     "dnsdisc": {