chore: modernise golang code

[sweatybridge]

What kind of change does this PR introduce?

Bug fix, feature, docs update, ...

What is the current behavior?

Please link any relevant issues here.

What is the new behavior?

Feel free to include screenshots if it includes visual changes.

Additional context

Add any other context or screenshots.

[coveralls]

Pull Request Test Coverage Report for Build 18484197182

Details

• 12 of 25 (48.0%) changed or added relevant lines in 14 files are covered.
• 5 unchanged lines in 1 file lost coverage.
• Overall coverage decreased (-0.09%) to 54.597%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
cmd/start.go	0	1	0.0%
internal/postgresConfig/update/update.go	0	1	0.0%
internal/utils/enum.go	0	1	0.0%
cmd/root.go	0	2	0.0%
internal/sso/create/create.go	0	4	0.0%
internal/sso/update/update.go	0	4	0.0%

Files with Coverage Reduction	New Missed Lines	%
internal/gen/keys/keys.go	5	12.9%

Totals
Change from base Build 18470605567:	-0.09%
Covered Lines:	6390
Relevant Lines:	11704

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💛 - Coveralls