Rename trpc Azure Functions plugin to be prefix unstable

[mildronize]

All packages under nammatham v2 will be released the same version, this should mark as unstable api until has been tested it well

expected name

import { unstable__tRpcAzureFunctionsPlugin } from '@nammatham/trpc-azure-functions';
import { app } from './nammatham';
import { appRouter, createContext } from './router';

app.register(
  unstable__tRpcAzureFunctionsPlugin({
    prefix: '/trpc',
    trpcOptions: {
      router: appRouter,
      createContext,
    }
  })
);
app.start();