fix(packages/microservices): pass inboxPrefix as argument to createInbox

[leandrogenas]

Pretty simple fix to correctly prepend the inboxPrefix to the NATS inbox ID

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?

#13150

Issue Number: 13150

What is the new behavior?

The inbox prefix being added to the inbox ID

Does this PR introduce a breaking change?

• Yes
• No

Other information

[coveralls]

Pull Request Test Coverage Report for Build d9418cea-7a37-4776-9e7a-3ac67c5f7adf

• 0 of 1 (100.0%) changed or added relevant line in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 92.197%

---

Totals
Change from base Build 889ffab4-7a4b-4e81-8f8a-630e303f4274:	0.0%
Covered Lines:	6723
Relevant Lines:	7292

---

💛 - Coveralls

[kamilmysliwiec]

LGTM