fix: resolve ESLint 10 compatibility issues

[Copilot]

Context

ESLint 10 introduced two new rules causing lint failures: preserve-caught-error requires error chaining when rethrowing, and no-useless-assignment flags unused initial assignments.

Changes:

• Added { cause: error } to preserve error chain when rethrowing in:
  • src/api/retry.ts - retry operation failures
  • src/config/authConfig.ts - auth file parsing errors
  • src/config/fileConfig.ts - config file parsing errors
• Removed useless initial null assignment in src/modules/deployments/redeploy.ts

Example:

// Before
throw new Error(`Invalid auth file: ${error.message}`)

// After
throw new Error(`Invalid auth file: ${error.message}`, { cause: error })

Related Jira ticket

N/A - Dependency update maintenance

Screenshots

N/A

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[Copilot]

Just as a heads up, I was blocked by some firewall rules while working on your feedback. Expand below for details.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• api.nosto.com
  • Triggering command: /opt/hostedtoolcache/node/24.13.0/x64/bin/node /opt/hostedtoolcache/node/24.13.0/x64/bin/node --conditions node --conditions development --experimental-import-meta-resolve --require /home/REDACTED/work/nosto-cli/nosto-cli/node_modules/vitest/suppress-warnings.cjs /home/REDACTED/work/nosto-cli/nosto-cli/node_modules/vitest/dist/workers/forks.js (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

[nosto-release-public]

🎉 This PR is included in version 1.2.6 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀