Fix github npm package release permissions

[mattdean-digicatapult]

Pull Request

Checklist

• Have you read Digital Catapult's Code of Conduct?
• I have performed a self-review of my own code.
• I have commented my code, particularly in hard-to-understand areas.
• I have made corresponding changes to the documentation.
• My changes generate no new warnings.
• I have added tests that prove my fix is effective or that my feature works.
• New and existing unit tests pass locally with my changes.

PR Type

Please delete options that are irrelevant.

• Bug Fix
• Chore
• Feature
• Documentation Update
• Code style update (formatting, local variables)
• Breaking Change (fix or feature that would cause existing functionality to change)

Linked tickets

https://digicatapult.atlassian.net/browse/SQNC-50

High level description

Fixes a bug in the release of github npm package due to permissions

Detailed description

This PR depends on digicatapult/shared-workflows#18 which adds support for publishing a github npm package using the GITHUB_TOKEN secret.

Note the lack of version bump as the previous release failed

Describe alternatives you've considered

None

Operational impact

See digicatapult/shared-workflows#18 for steps to revert

Additional context

digicatapult/shared-workflows#18