feat(load-dependencies): added preCode for services and tests

[YuryShkoda]

Issue

https://github.com/sasjs/cli/issues/1191

Intent

• Add preCode to services and tests.

Implementation

• Used getPreCodeForServicePack function in loadDependenciesFile function.
• Covered getPreCodeForServicePack with unit tests.

Checks

• [x] Code is formatted correctly (npm run lint:fix).
• [x] All unit tests are passing (npm test).
• [x] All sasjs-cli unit tests are passing (npm test).
• [x] Reviewer is assigned.

[YuryShkoda]

Can we convert constant string to const variables and use both in spec and in function?

good idea!

[sasjsbot]

:tada: This PR is included in version 2.51.0 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot :package::rocket: