Potential fix for code scanning alert no. 1: Workflow does not contain permissions

[poopoothegorilla]

Potential fix for https://github.com/smartcontractkit/chainlink-framework/security/code-scanning/1

To fix the problem, add an explicit permissions: block to the workflow file. This should be added at the root of the workflow file (just after the name: or on: block), to ensure the default, minimal permissions apply to all jobs unless overridden. The safest minimal setting for nearly all workflows, unless they require special token access, is contents: read. If later steps genuinely require greater permissions, those can be granted at the job level as exceptions.

Steps:

• Insert the following block after the name: line and before the on: block in .github/workflows/test.yml:

  permissions:
    contents: read

• No imports or additional setup are needed, as this is pure YAML configuration.

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