Update for swift-log 1.11.0

[gwynne]

These changes are now available in 4.16.0

Updates ConsoleKit to reflect the API improvements in swift-log 1.11.0. Also updates the package to require Swift 6.1, fix numerous little docs issues, and just generally updates things.

[codecov]

Codecov Report

❌ Patch coverage is 75.00000% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 45.88%. Comparing base (7f953c6) to head (1e50612).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...s/ConsoleKitTerminal/Utilities/ConsoleLogger.swift	73.68%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #232      +/-   ##
==========================================
- Coverage   46.65%   45.88%   -0.78%     
==========================================
  Files          46       46              
  Lines        1736     1700      -36     
==========================================
- Hits          810      780      -30     
+ Misses        926      920       -6     

Files with missing lines	Coverage Δ
...mands/Async/GenerateAsyncAutocompleteCommand.swift	0.00% <ø> (ø)
...ces/ConsoleKitCommands/Completion/Completion.swift	1.28% <ø> (ø)
...mands/Completion/GenerateAutocompleteCommand.swift	0.00% <ø> (ø)
Sources/ConsoleKitTerminal/Terminal/ANSI.swift	85.05% <ø> (ø)
Sources/ConsoleKitTerminal/Terminal/Console.swift	100.00% <ø> (ø)
Sources/ConsoleKitTerminal/Terminal/Terminal.swift	27.14% <ø> (ø)
.../ConsoleKitTerminal/Utilities/LoggerFragment.swift	85.03% <100.00%> (ø)
...s/ConsoleKitTerminal/Utilities/ConsoleLogger.swift	78.33% <73.68%> (-1.88%)	⬇️

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.