FIX catch stream errors in grpc

[Hellomik2002]

At the current moment if you throw error in stream, It will throw all app, but with this fix error will be handled, and server will not fall dawn

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• The commit message follows our guidelines: https://github.com/nestjs/nest/blob/master/CONTRIBUTING.md
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Other... Please describe:

What is the current behavior?

Issue Number: N/A

What is the new behavior?

Does this PR introduce a breaking change?

• Yes
• No

Other information

[coveralls]

Pull Request Test Coverage Report for Build d6d6eb9f-b99a-461b-bda2-a3392e148782

• 2 of 4 (50.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.02%) to 92.236%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
packages/microservices/server/server-grpc.ts	2	4	50.0%

Totals
Change from base Build 3770aab0-7e99-46e0-b1a8-34ce234c1890:	-0.02%
Covered Lines:	6688
Relevant Lines:	7251

---

💛 - Coveralls

[kamilmysliwiec]

Can you add tests for this change?

[Hellomik2002]

You already have tests, but don't include that case, I am not sure that can write it right

[kamilmysliwiec]

Could you provide a minimum reproduction repository then? (that reproduces your issue)

[Hellomik2002]

You can write any stream function and do throw as first action

listenUser(
    messages: Observable<proto.EmptyBody>,
    metaData?: Metadata,
    duplex?: ServerDuplexStreamImpl<
      proto.UpdateLocationInput,
      proto.OrdersResponce
    >,
  ): Observable<proto.OrdersResponce> {
  throw 'Any thing';
  }

it will crash Application