feat(ng-dev): create a new label target: automation to be used by bots

[josephperrott]

Create a new label for bots to use for targetting only the branch selected in Github. Additionally, set up support for the merge and github actions tooling to support this new label' is not a valid branch name.

[alan-agius4]

Thanks for this @josephperrott

[alan-agius4]

This PR was merged into the repository. The changes were merged into the following branches:

• main: 0f0f951

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