Backend/Ether: catch/retry new -32002 err code

Fix cherry-picked from stable branch:

CI on master branch caught this[1]:

```
Unhandled Exception:
System.AggregateException: One or more errors occurred. (Some problem when connecting to 'api.mycryptoapi.com/eth') ---> System.Exception: Some problem when connecting to 'api.mycryptoapi.com/eth' ---> System.Exception: RpcResponseException with RpcError Code <-32002> and Message 'rejected due to project ID settings' (rejected due to project ID settings) ---> JsonRpcSharp.Client.RpcResponseException: rejected due to project ID settings
  at JsonRpcSharp.Client.ClientBase.HandleRpcError (JsonRpcSharp.Client.RpcMessages.RpcResponseMessage response) [0x00033] in <4c31088b87e449d8935ce2e038670d08>:0
  at JsonRpcSharp.Client.ClientBase.SendInnerRequestAsync[T] (JsonRpcSharp.Client.RpcMessages.RpcRequestMessage reqMsg, System.String route, System.Threading.CancellationToken cancellationToken) [0x00089] in <4c31088b87e449d8935ce2e038670d08>:0
  at JsonRpcSharp.Client.ClientBase.SendInnerRequestAsync[T] (JsonRpcSharp.Client.RpcRequest request, System.String route, System.Threading.CancellationToken cancellationToken) [0x000a3] in <4c31088b87e449d8935ce2e038670d08>:0
  at JsonRpcSharp.Client.ClientBase.SendRequestAsync[T] (JsonRpcSharp.Client.RpcRequest request, System.String route, System.Threading.CancellationToken cancellationToken) [0x00127] in <4c31088b87e449d8935ce2e038670d08>:0
   --- End of inner exception stack trace ---
  at GWallet.Backend.Ether.Server.MaybeRethrowRpcResponseException (System.Exception ex) [0x001a9] in /Users/runner/work/geewallet/geewallet/src/GWallet.Backend/Ether/EtherServer.fs:224
  at GWallet.Backend.Ether.Server.ReworkException (System.Exception ex) [0x0000e] in /Users/runner/work/geewallet/geewallet/src/GWallet.Backend/Ether/EtherServer.fs:299
  at GWallet.Backend.Ether.Server+HandlePossibleEtherFailures@387-6[R].Invoke (System.Exception _arg2) [0x00002] in /Users/runner/work/geewallet/geewallet/src/GWallet.Backend/Ether/EtherServer.fs:392
  at GWallet.Backend.Ether.Server+HandlePossibleEtherFailures@387-8[R].Invoke (System.Exception exn) [0x00000] in /Users/runner/work/geewallet/geewallet/src/GWallet.Backend/Ether/EtherServer.fs:387
  at GWallet.Backend.Ether.Server+HandlePossibleEtherFailures@387-10[R].Invoke (System.Exception edi) [0x00000] in /Users/runner/work/geewallet/geewallet/src/GWallet.Backend/Ether/EtherServer.fs:387
  at Microsoft.FSharp.Control.AsyncPrimitives.CallFilterThenInvoke[T] (Microsoft.FSharp.Control.AsyncActivation`1[T] ctxt, Microsoft.FSharp.Core.FSharpFunc`2[T,TResult] catchFilter, System.Runtime.ExceptionServices.ExceptionDispatchInfo edi) [0x00005] in E:\A\_work\130\s\src\fsharp\FSharp.Core\async.fs:435
  at Microsoft.FSharp.Control.Trampoline.Execute (Microsoft.FSharp.Core.FSharpFunc`2[T,TResult] firstAction) [0x00020] in E:\A\_work\130\s\src\fsharp\FSharp.Core\async.fs:109
   --- End of inner exception stack trace ---
  at GWallet.Backend.Ether.Server+Web3ServerToRetrievalFunc@406-2[R].Invoke (System.Exception _arg3) [0x00060] in /Users/runner/work/geewallet/geewallet/src/GWallet.Backend/Ether/EtherServer.fs:415
  at GWallet.Backend.Ether.Server+Web3ServerToRetrievalFunc@406-5[R].Invoke (System.Exception exn) [0x00000] in /Users/runner/work/geewallet/geewallet/src/GWallet.Backend/Ether/EtherServer.fs:406
  at GWallet.Backend.Ether.Server+Web3ServerToRetrievalFunc@406-7[R].Invoke (System.Exception edi) [0x00000] in /Users/runner/work/geewallet/geewallet/src/GWallet.Backend/Ether/EtherServer.fs:406
  at Microsoft.FSharp.Control.AsyncPrimitives.CallFilterThenInvoke[T] (Microsoft.FSharp.Control.AsyncActivation`1[T] ctxt, Microsoft.FSharp.Core.FSharpFunc`2[T,TResult] catchFilter, System.Runtime.ExceptionServices.ExceptionDispatchInfo edi) [0x00005] in E:\A\_work\130\s\src\fsharp\FSharp.Core\async.fs:435
  at Microsoft.FSharp.Control.Trampoline.Execute (Microsoft.FSharp.Core.FSharpFunc`2[T,TResult] firstAction) [0x00020] in E:\A\_work\130\s\src\fsharp\FSharp.Core\async.fs:109
--- End of stack trace from previous location where exception was thrown ---

  at GWallet.Backend.FSharpUtil.ReRaise (System.Exception ex) [0x00000] in /Users/runner/work/geewallet/geewallet/src/GWallet.Backend/FSharpUtil.fs:206
...
```

[1] https://github.com/nblockchain/geewallet/actions/runs/3507005645/jobs/5874411684

src/GWallet.Backend/Ether/EtherExceptions.fs

@@ -15,6 +15,9 @@ type RpcErrorCode =
     // so many different errors use this shitty error code... don't ask me why
     | JackOfAllTradesErrorCode = -32000
 
+    // message was "rejected due to project ID settings" (don't ask me wtf this means)
+    | ProjectIdSettingsRejection = -32002
+
     // ambiguous or generic because I've seen same code applied to two different error messages already:
     // "Transaction with the same hash was already imported. (Transaction with the same hash was already imported.)"
     // AND

src/GWallet.Backend/Ether/EtherServer.fs

@@ -211,7 +211,9 @@ module Server =
                     raise <| ServerMisconfiguredException(exMsg, rpcResponseEx)
                 | d when d = int RpcErrorCode.EmptyResponse ->
                     raise <| ServerMisconfiguredException(exMsg, rpcResponseEx)
-                | e when e = int RpcErrorCode.DailyRequestCountExceededSoRequestRateLimited ->
+                | e when e = int RpcErrorCode.ProjectIdSettingsRejection ->
+                    raise <| ServerRefusedException(exMsg, rpcResponseEx)
+                | f when f = int RpcErrorCode.DailyRequestCountExceededSoRequestRateLimited ->
                     raise <| ServerRefusedException(exMsg, rpcResponseEx)
                 | _ ->
                     raise