Parsing failed if json data contains Cyrillic

[nigma143]

var module = OpaPolicyModule.Load("policy.wasm", _opaEngine); using var opaPolicy = module.CreatePolicyInstance();

opaPolicy.SetDataJson("{"User": "Россия"}"); <-- Parsing failed exception

[christophwille]

https://github.com/christophwille/dotnet-opa-wasm/blob/a0a1da3211842370fa99a419b3c5b6ff27406613/src/Opa.Wasm/OpaPolicy.cs#L313

That calls into LoadJson

https://github.com/christophwille/dotnet-opa-wasm/blob/a0a1da3211842370fa99a419b3c5b6ff27406613/src/Opa.Wasm/OpaPolicy.cs#L326-L338

So looks the parsing error actually occurs inside OPA.

[nigma143]

#53