feat(ci): add paths configuration to GitHub Actions for charts structure

[electrosenpai]

Description

This Pull Request introduces an update to the GitHub Actions workflow to align with the current chart structure.

Key Changes:

• Added path configurations in the CI workflow to ensure correct paths for both the main chart.
• Updated Helm dependencies using helm dependency update to ensure all charts are up to date.
• Maintained the automation for chart releases and publishing to GitHub Pages.

Why this change is necessary:

This update is required due to the specific chart structure of the repository. The previous configuration didn't account for the custom path locations of the charts, which could lead to issues during the CI/CD process. By adjusting the paths, we ensure that all charts are correctly linted, packaged, and published.

Checklist:

• Added path corrections for Helm charts.
• Verified that helm lint runs successfully for all charts.
• Tested the release process with the new path configurations.

[electrosenpai]

This issue will also close both PRs:

#55
https://github.com/getlago/lago-helm-charts/pull/16/files

Unfortunately, we are unable to implement such significant changes as proposed in these two PRs at this time. Some of our users rely on pulling the Git repository directly to deploy Lago, and we want to avoid introducing breaking changes for now. We truly appreciate your initiatives, gilliangoud and grafjo. 🙏