chore: update GitHub Actions workflows for permissions and versioning

[eloi010]

chore: update GitHub Actions workflows for permissions and versioning

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Note

Low Risk
CI workflow-only changes with least-privilege permissions and dependency pin updates; no application runtime impact.

Overview
Hardens GitHub Actions by setting workflow-level permissions: {} on nft-resolver-tests and security-code-scanner, so jobs only get the scopes they declare explicitly.

For nft-resolver tests, the job now grants contents: read and actions: write, bumps actions/checkout to v6.0.3, and sets persist-credentials: false on checkout.

For security scanning, the reusable MetaMask scanner workflow is bumped from v2.0.6 to v2.1.0; the job’s actions/contents/security-events permissions are unchanged.

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[Copilot]

Pull request overview

This PR tightens GitHub Actions security by explicitly setting minimal default GITHUB_TOKEN permissions at the workflow level and updates pinned action/workflow SHAs for reproducibility.

Changes:

• Add workflow-level permissions: {} to reduce default token scopes.
• Bump actions/checkout pin from v6.0.2 to v6.0.3 in the test workflow.
• Bump MetaMask security scanner reusable workflow pin from v2.0.6 to v2.1.0.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
.github/workflows/security-code-scanner.yml	Adds workflow-level minimal permissions and updates the pinned reusable security scan workflow SHA.
.github/workflows/nft-resolver-tests.yml	Adds workflow-level minimal permissions and updates the pinned checkout action SHA for the CI test workflow.

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[Copilot]

Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

[Copilot]

Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated no new comments.