Add formation templates label support

[PetarTodorovv]

Description
This PR adds CRUD functionalities for labels on the formation template entities.

Changes proposed in this pull request:

• Add two new mutations - setFormationTemplateLabel and deleteFormationTemplateLabel that create/update and delete labels for formation templates respectively
• Enrich the formation templates with the labels property and add labels sub-resolver
• In the label package add support for the formation template entities
• Add label filter support based on the newly introduced formation template labels
• Split the current formation template input into two new inputs - one for registration and one for the update so the labels(and webhooks) can be only added initially on registration but not updated through the update mutations
• Added created_at and updated_at timestamps to the formation templates
• Adapt the current unit tests and add a new ones
• Some of the E2E tests are adapted to create formation templates with labels and assert them
• Fixes/adaptations in the E2E fixtures

Related issue(s)

• ...

Pull Request status

• Implementation
• Unit tests
• Integration tests
• chart/compass/values.yaml is updated
• Mocks are regenerated, using the automated script

[kyma-bot]

@PetarTodorovv: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pre-main-compass-gke-benchmark	6bf8ed4	link	false	/test pre-main-compass-gke-benchmark

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[kyma-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ivantenevvasilev, Peteva

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Needs approval from an approver in each of these files:

• OWNERS [ivantenevvasilev]
• components/director/internal/domain/formationtemplate/OWNERS [ivantenevvasilev]
• tests/director/tests/formation/OWNERS [ivantenevvasilev]
• tests/director/tests/notifications/OWNERS [ivantenevvasilev]
• tests/ord-service/OWNERS [ivantenevvasilev]
• tests/pkg/notifications/OWNERS [ivantenevvasilev]

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