feat(microservices): add "maxConnectionAttempts" option to RMQ, hide urls log

[kamilmysliwiec]

PR Checklist

Please check if your PR fulfills the following requirements:

• 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: #10029

What is the new behavior?

Does this PR introduce a breaking change?

• Yes
• No

Other information

[coveralls]

Pull Request Test Coverage Report for Build 6db6b28b-452c-478b-be7c-8b9f6c3f2185

• 4 of 12 (33.33%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.1%) to 93.825%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
packages/microservices/server/server-rmq.ts	4	12	33.33%

Totals
Change from base Build 72b8f4f8-0820-47dd-aa70-f48b5b84dd57:	-0.1%
Covered Lines:	6093
Relevant Lines:	6494

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💛 - Coveralls