Remove usage of archived module `github.com/pkg/errors`

[NitinRamesh25]

Currently github.com/pkg/errors is a direct dependency. However this repository has already been archived for over a year. Requesting to remove usage of this outdated library, as similar things have been done in other open-source modules.

[NitinRamesh25]

Any update on this ? It's only used in one place, to add stacktrace to the error instance. Can't this simply be achieved using the runtime in-built module instead of relying on an outdated module github.com/pkg/errors