Deploy TypeDB Runner to Maven

[jamesreprise]

What is the goal of this PR?

We've added the deployment of our TypeDB Runner classes to our Maven repository so developers using build systems other than Bazel can make use of our runners.

What are the changes implemented in this PR?

• We've refactored the //test package into //runner as it solely contains files to do with TypeDB runners. Additionally, //test reads as though it is a package containing tests for 'typedb-common'.
• We've removed instructions which attempted (and failed) to include the runner package (previously named 'test') in the common jar.
• We've added instructions to deploy the runner library to our Maven repository.

[typedb-bot]

PR Review Checklist

Do not edit the content of this comment. The PR reviewer should simply update this comment by ticking each review item below, as they get completed.

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Trivial Change

• [ ] This change is trivial and does not require a code or architecture review.

Code

• [x] Packages, classes, and methods have a single domain of responsibility.
• [x] Packages, classes, and methods are grouped into cohesive and consistent domain model.
• [x] The code is canonical and the minimum required to achieve the goal.
• [x] Modules, libraries, and APIs are easy to use, robust (foolproof and not errorprone), and tested.
• [x] Logic and naming has clear narrative that communicates the accurate intent and responsibility of each module (e.g. method, class, etc.).
• [x] The code is algorithmically efficient and scalable for the whole application.

Architecture

• [x] Any required refactoring is completed, and the architecture does not introduce technical debt incidentally.
• [x] Any required build and release automations are updated and/or implemented.
• [x] Any new components follows a consistent style with respect to the pre-existing codebase.
• [x] The architecture intuitively reflects the application domain, and is easy to understand.
• [x] The architecture has a well-defined hierarchy of encapsulated components.
• [x] The architecture is extensible and scalable.