chore(deps): Bump Serilog

[dependabot]

Bumps Serilog and System.Diagnostics.DiagnosticSource. These dependencies needed to be updated together.
Updates Serilog from 3.1.1 to 4.0.1

Release notes

Sourced from Serilog's releases.

v4.0.1

• #2090 — when capturing structured values, reuse HashSet instances, reduce LINQ usage, avoid reallocating string[] to improve performance and cut GC pressure (@​nblumhardt)
• #2089 - allow capturing of non-anonymous structured values when trimming (@​nblumhardt)
• #2083 - use Major.Minor.0.0 assembly versioning (@​nblumhardt)

v4.0.0

What's new in Serilog 4.0.0?

If you're deploying to .NET Framework, note that Serilog's assembly version number has been unpinned from the long-running historical 2.0.0 default, and now matches the package version precisely. If you encounter issues, ensure your build is generating valid assembly binding redirects.

Simple, robust, built-in batching support

Sinks that need batching functionality can now be easily written, without any additional package dependencies, by implementing IBatchedLogEventSink:

class MyBatchedSink: IBatchedLogEventSink
{
    public Task EmitBatchAsync(IReadOnlyCollection<LogEvent> batch)
    {
        // Send a batch of log events...
    }
}

Batched sinks can be added using WriteTo.Sink(IBatchedLogEventSink, ...) - they're given first-class consideration just like regular un-batched sinks.

The built-in batching implementation is based on System.Threading.Channels and draws on the original Serilog.Sinks.PeriodicBatching package (now in maintenance-mode), to provide a full-featured, efficient, async-native batching implementation.

Experimental dotted name capturing

By setting an experimental AppContext switch, message templates can be used to capture dotted names, which are required when using some logging schemas.

AppContext.SetSwitch("Serilog.Parsing.MessageTemplateParser.AcceptDottedPropertyNames", true);
Log.Information("Running as {user.name}", Environment.UserName);
// Captures {"user.name": "nblumhardt"}

While currently experimental and unsupported, this flag is intended to help the ecosystem evaluate and prepare for dotted name support in a future Serilog release.

Changes

• #2015 — breaking unpin assembly version (@​nblumhardt)
• #2045 — breaking use case-insensitive matching for level overrides (@​tillig)
• #2051 — breaking recognize UtcTimestamp as a built-in token in output templates (@​MatthewHays)
• #1979 — add tests for ReusableStringWriter (@​nblumhardt)
• #2016 — update TFMs (@​nblumhardt, @​bartelink)
• #2018 — add LogEvent.UnstableAssembleFromParts() (@​nblumhardt)

... (truncated)

Commits

• 0664815 Merge pull request #2092 from serilog/dev
• f91b1bc Drop macOS CI target; too slow to run successfully (#2093)
• 5844a9f Reuse HashSet instances, reduce LINQ usage, avoid reallocating `StructureVa...
• 2fb5f4d Allow non-anonymous-type destructuring when trimmed (#2089)
• d98f7fa Version Serilog.dll as Major.Minor.0.0 (#2083)
• fdf4a48 Dev version bump [skip ci]
• 573a628 Merge pull request #2067 from serilog/dev
• e963475 Attempt to make tests more robust on slow CI machines by increasing time steps
• 5e18faf Update all dependencies, fix new xUnit lints
• 9fcf795 Move TrimConfiguration to Capturing namespace, 'Configuration' namespace is j...
• Additional commits viewable in compare view

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[dependabot]

OK, I won't notify you again about this release, but will get in touch when a new version is available. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.