feat(core): restrict using the read function on the Worker

[loicmathieu]

Fixes #3126

The following flow:

id: read
namespace: myteam
description: Save and Execute the flow

tasks:
  - id: Label
    type: io.kestra.core.tasks.executions.Labels
    labels:
      toto: "{{read('toto.tata')}}"
  - id: log
    type: io.kestra.core.tasks.log.Log
    message: "Should fail before"

Will fail with:

[sonarqubecloud]

Quality Gate failed

Failed conditions
C Reliability Rating on New Code (required ≥ A)

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