Build update helm and go dependencies to latest versions

[yxxhero]

This pull request updates the Helm versions in the CI workflow and modernizes dependencies in the go.mod file. The most significant changes include upgrading Helm versions in the CI matrix, updating several Go module dependencies to newer versions, and removing unused or outdated dependencies.

CI Workflow Updates:

• Updated Helm versions in .github/workflows/ci.yaml from v3.17.2 and v3.16.4 to v3.18.0 and v3.17.3 across all workflows to ensure compatibility with the latest Helm minor versions. [1] [2]

Dependency Updates:

• Upgraded helm.sh/helm/v3 dependency in go.mod from v3.17.3 to v3.18.0.
• Updated github.com/aryann/difflib to a newer version (ff5ff6dc229b) for better functionality.
• Modernized indirect dependencies in go.mod, including upgrades to github.com/Azure/go-ansiterm (faa5f7b0171c), github.com/BurntSushi/toml (v1.5.0), github.com/moby/term (v0.5.2), and others. [1] [2] [3]
• Removed unused dependencies such as github.com/gorilla/mux, go.opentelemetry.io/otel, and github.com/prometheus/client_golang to clean up the go.mod file. [1] [2] [3]

These changes improve compatibility with the latest tools and libraries while simplifying the dependency tree.