chore: configure golangci-lint

[sudo-suhas]

• There are two versions of the configuration file added - .golangci.toml and .golangci-prod.toml. The former is for local development and testing, while the latter is for continuous integration (CI). The difference is that the prod version includes some more intensive checks that may take longer to run, but are important for ensuring code quality and security.
• Manage tools used to build, lint and format code using tools/go.mod. Set up the Makefile to use locally built versions of the tools using tools/go.mod.
• Update the golang-lint-action workflow to use latest version of golangci-lint.

Note that the linter reports errors only for code that was changed since previous commit even with the updated configuration. This should allow us to gradually address all linter issues.

[coveralls]

Pull Request Test Coverage Report for Build 5128911378

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 85.789%

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Totals
Change from base Build 5118820437:	0.0%
Covered Lines:	5228
Relevant Lines:	6094

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💛 - Coveralls