chore: fix the create inlet help message

[ivor11]

Current behavior

Current rust doc comment for creating a TCP inlet:
Create TCP Inlets

Proposed changes

Proposed rust doc comment for creating a TCP inlet:
Create a TCP Inlet

Closes #6643

Checks

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[etorreborre]

Hi @ivor11, can you please:

• Check the commits convention and adjust your commit for this PR (note: chore: fix the create inlet help message is fine as a message)

• Create a separate pull request to be added as a contributor?

[ivor11]

Thanks @etorreborre,
I've edited the commit message as per your suggestion and created a PR for adding myself as a contributor #8462

[etorreborre]

Hi @ivor11 you need to use the same email for your contributions as the one listed in your CLA acceptance. Can you please either change this PR commit or open a new CLA PR to fix your email address?

[ivor11]

Hi @etorreborre,
I've fixed the email on the PR commit, could you please run the CI checks again

[ivor11]

Hi @etorreborre,
can you please run the checks again and merge this PR?