[backend] - Firebase connectivity session isn't renewed after network glitches

[mur-me]

Steps to reproduce:

1. Somehow limit connectivity to the Firebase - turn off WIFI/Ethernet network
2. You will get the connectivity issues in the logs like error in processValidatorInfoData: Error: 13 INTERNAL: Failed to start HTTP/2 stream
3. restore the WIFI/Ethernet network

Result: even after restored connectivity error in processValidatorInfoData: Error: 13 INTERNAL: Failed to start HTTP/2 stream are still here.

Expected result: backend should recreate the connectivity session after restoring the network.

Full issue stacktrace:

error in processValidatorInfoData: Error: 13 INTERNAL: Failed to start HTTP/2 stream
    at Object.callErrorFromStatus (staking-dashboard/appengine/node_modules/@grpc/grpc-js/build/src/call.js:30:26)
    at Object.onReceiveStatus (staking-dashboard/appengine/node_modules/@grpc/grpc-js/build/src/client.js:175:52)
    at Object.onReceiveStatus (staking-dashboard/appengine/node_modules/@grpc/grpc-js/build/src/client-interceptors.js:341:141)
    at Object.onReceiveStatus (staking-dashboard/appengine/node_modules/@grpc/grpc-js/build/src/client-interceptors.js:304:181)
    at Http2CallStream.outputStatus (staking-dashboard/appengine/node_modules/@grpc/grpc-js/build/src/call-stream.js:116:74)
    at Http2CallStream.maybeOutputStatus (staking-dashboard/appengine/node_modules/@grpc/grpc-js/build/src/call-stream.js:155:22)
    at Http2CallStream.endCall (staking-dashboard/appengine/node_modules/@grpc/grpc-js/build/src/call-stream.js:141:18)
    at Http2CallStream.cancelWithStatus (staking-dashboard/appengine/node_modules/@grpc/grpc-js/build/src/call-stream.js:457:14)
    at staking-dashboard/appengine/node_modules/@grpc/grpc-js/build/src/channel.js:209:48
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
Caused by: Error
    at WriteBatch.commit (staking-dashboard/appengine/node_modules/@google-cloud/firestore/build/src/write-batch.js:415:23)
    at DocumentReference.set (staking-dashboard/appengine/node_modules/@google-cloud/firestore/build/src/reference.js:341:14)
    at DBService.updateDocument (staking-dashboard/appengine/dist/services/database.js:17:67)
    at ValidatorsInfoService.processValidatorInfoData (staking-dashboard/appengine/dist/services/sync/validators-info.js:133:36)
    at staking-dashboard/appengine/dist/services/sync/validators-info.js:66:40
    at Array.forEach (<anonymous>)
    at ValidatorsInfoService.processValidatorWithPage (staking-dashboard/appengine/dist/services/sync/validators-info.js:64:37)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
    at async ValidatorsInfoService.getAllValidatorsInfo (staking-dashboard/appengine/dist/services/sync/validators-info.js:195:31)
    at async SyncService.update (staking-dashboard/appengine/dist/services/sync/index.js:22:17) {
  code: 13,
  details: 'Failed to start HTTP/2 stream',
  metadata: Metadata { internalRepr: Map(0) {}, options: {} },
  note: 'Exception occurred in retry method that was not classified as transient'
}