refactor: loop over a range of integers starting from zero in shorthand

[zimeg]

Summary

This PR replaces longform loop expressions with a shorthand range when iterating across integers starting from zero.

No change to functionalities!

Notes

• 📚 https://go.dev/wiki/Range
• AFAICT the following is not supported in go. Perhaps for good reason I believe:

for i := range 1..100 { /* */ }

Requirements

• I've read and understood the Contributing Guidelines and have done my best effort to follow them.
• I've read and agree to the Code of Conduct.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 63.48%. Comparing base (662186b) to head (1beaa60).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #110   +/-   ##
=======================================
  Coverage   63.48%   63.48%           
=======================================
  Files         212      212           
  Lines       22341    22341           
=======================================
  Hits        14183    14183           
  Misses       7067     7067           
  Partials     1091     1091           

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[mwbrooks]

✅ Looks good to me! I never knew that we use the range syntax with a single integer!

[zimeg]

@mwbrooks I forget which Go release unlocked this, but the great @golangci linter suggested this change to me 🤖✨

I'm glad we have regression tests to confirm this holds too:

slack-cli/internal/hooks/hook_executor_v2_test.go

Lines 186 to 193 in 1beaa60

	func Test_Hook_Execute_V2_GenerateMD5FromRandomString(t *testing.T) {
	randomString1 := generateMD5FromRandomString()
	randomString2 := generateMD5FromRandomString()
	assert.NotEqual(t, randomString1, randomString2)
	assert.GreaterOrEqual(t, len(randomString1), 10)
	assert.GreaterOrEqual(t, len(randomString2), 10)
	}

In ongoing incremental efforts toward improved code health I will merge this once the tests pass 👾