Update docs for Mqtt5BlockingClient

[tejas-n]

Description

The official GitHub pages do a great job of explaining the exceptions that would be thrown by connect(Mqtt5Connect) and publish(Mqtt5Publish), but the Javadocs miss mentioning a couple of them, which can lead to the developers not handling them. I'm just using the exception description as already defined on https://hivemq.github.io/hivemq-mqtt-client/docs/mqtt-operations/

Type of Change

• 📚 Examples / docs / tutorials / dependencies update
• 🔧 Bug fix (non-breaking change which fixes an issue)
• 🥂 Improvement (non-breaking change which improves an existing feature)
• 🚀 New feature (non-breaking change which adds functionality)
• 💥 Breaking change (fix or feature that would cause existing functionality to change)
• 🔐 Security fix

Checklist

• I've written tests (if applicable) for all new methods and classes that I created.
• I've added documentation as necessary so users can easily use and understand this feature/fix.

[cla-bot]

Thank you for your pull request and welcome to our community. We require contributors to sign our Contributor License Agreement, and we don't seem to have the users @tejas-n on file. In order for us to review and merge your code, please sign our Contributor License Agreement to get yourself added. You'll find the CLA and more information here: https://github.com/hivemq/hivemq-community/blob/master/CONTRIBUTING.adoc#contributor-license-agreement

[cla-bot]

Thank you for your pull request and welcome to our community. We require contributors to sign our Contributor License Agreement, and we don't seem to have the users @tejas-n on file. In order for us to review and merge your code, please sign our Contributor License Agreement to get yourself added. You'll find the CLA and more information here: https://github.com/hivemq/hivemq-community/blob/master/CONTRIBUTING.adoc#contributor-license-agreement

[cla-bot]

Thank you for your pull request and welcome to our community. We require contributors to sign our Contributor License Agreement, and we don't seem to have the users @tejas-n on file. In order for us to review and merge your code, please sign our Contributor License Agreement to get yourself added. You'll find the CLA and more information here: https://github.com/hivemq/hivemq-community/blob/master/CONTRIBUTING.adoc#contributor-license-agreement

[sauroter]

@cla-bot check

[cla-bot]

The cla-bot has been summoned, and re-checked this pull request!

[sauroter]

Hi @tejas-n,

our internal CLA tooling was broken for a little while, sorry for that.

[tejas-n]

@sauroter No worries. I've signed the CLA.