Handle read ECONNRESET

[DenisCarriere]

Happens quite frequently where the gRPC connection is dropped, webhook exits when that happens

ConnectError: [unknown] read ECONNRESET
    at ConnectError.from (/Users/denis/Github/substreams-sink-webhook/node_modules/@connectrpc/connect/dist/cjs/connect-error.js:75:20)
    at abort (/Users/denis/Github/substreams-sink-webhook/node_modules/@connectrpc/connect/dist/cjs/protocol/run-call.js:109:55)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
    at async run (/Users/denis/Github/substreams-sink-webhook/node_modules/@connectrpc/connect/dist/cjs/callback-client.js:78:84) {
  rawMessage: 'read ECONNRESET',
  code: 2,
  metadata: HeadersList {
    cookies: null,
    [Symbol(headers map)]: Map(0) {},
    [Symbol(headers map sorted)]: null
  },
  details: [],
  cause: Error: read ECONNRESET
      at TLSWrap.onStreamRead (node:internal/stream_base_commons:217:20) {
    errno: -54,
    code: 'ECONNRESET',
    syscall: 'read'
  }
}