release(no-ticket): Release v2.0.3

[BartoszBlizniak]

Release v2.0.3:

• Register OIDC token as a secret before exposing it #36
• Forward --index-url to pip install instead of dropping it as exec options #37

[Copilot]

Pull request overview

Release PR for v2.0.3 of cloudsmith-cli-action, rolling up recent security and installation fixes and updating release metadata.

Changes:

• Bump npm package version to 2.0.3.
• Add v2.0.3 release notes to CHANGELOG.md.
• Update bundled dist/index.js and tweak the Husky pre-commit hook.

Reviewed changes

Copilot reviewed 3 out of 4 changed files in this pull request and generated 2 comments.

File	Description
package.json	Version bump to 2.0.3.
dist/index.js	Bundled output updated (includes a small comment tweak).
CHANGELOG.md	Add v2.0.3 entry describing security + pip-install fixes.
.husky/pre-commit	Remove Husky bootstrap/shebang lines and keep build+stage logic.

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