[repo] Use System.Threading.Lock

[Kielek]

Preparation for #3095 (comment)

Changes

[repo] Use System.Threading.Lock

Merge requirement checklist

• CONTRIBUTING guidelines followed (license requirements, nullable enabled, static analysis, etc.)
• [ ] Unit tests added/updated
• [ ] Appropriate CHANGELOG.md files updated for non-trivial changes
• [ ] Changes in public API reviewed (if applicable)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 69.83%. Comparing base (8452d88) to head (335f6be).
⚠️ Report is 5 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3099      +/-   ##
==========================================
- Coverage   70.12%   69.83%   -0.29%     
==========================================
  Files         416      426      +10     
  Lines       16444    16495      +51     
==========================================
- Hits        11531    11520      -11     
- Misses       4913     4975      +62     

Flag	Coverage Δ
unittests-Contrib.Shared.Tests	83.73% <ø> (ø)
unittests-Exporter.Geneva	53.33% <100.00%> (-0.45%)	⬇️
unittests-Exporter.InfluxDB	95.14% <ø> (ø)
unittests-Exporter.Instana	74.86% <ø> (ø)
unittests-Exporter.OneCollector	94.61% <100.00%> (ø)
unittests-Extensions	90.65% <ø> (ø)
unittests-Extensions.Enrichment	100.00% <ø> (ø)
unittests-Extensions.Enrichment.AspNetCore	94.11% <ø> (ø)
unittests-Instrumentation.AWS	83.80% <100.00%> (ø)
unittests-Instrumentation.AspNet	74.93% <ø> (ø)
unittests-Instrumentation.AspNetCore	70.76% <ø> (ø)
unittests-Instrumentation.Cassandra	23.52% <ø> (?)
unittests-Instrumentation.ConfluentKafka	14.10% <ø> (ø)
unittests-Instrumentation.ElasticsearchClient	80.12% <ø> (ø)
unittests-Instrumentation.EntityFrameworkCore	80.80% <ø> (ø)
unittests-Instrumentation.EventCounters	76.36% <ø> (ø)
unittests-Instrumentation.GrpcCore	91.42% <ø> (ø)
unittests-Instrumentation.GrpcNetClient	79.61% <ø> (ø)
unittests-Instrumentation.Hangfire	84.61% <ø> (ø)
unittests-Instrumentation.Http	74.18% <ø> (ø)
unittests-Instrumentation.Owin	88.62% <ø> (ø)
unittests-Instrumentation.Process	100.00% <ø> (ø)
unittests-Instrumentation.Quartz	78.76% <ø> (ø)
unittests-Instrumentation.Runtime	100.00% <ø> (ø)
unittests-Instrumentation.ServiceFabricRemoting	34.54% <ø> (ø)
unittests-Instrumentation.SqlClient	87.29% <ø> (ø)
unittests-Instrumentation.StackExchangeRedis	70.31% <ø> (ø)
unittests-Instrumentation.Wcf	78.95% <100.00%> (ø)
unittests-OpAmp.Client	74.22% <ø> (ø)
unittests-PersistentStorage	65.88% <ø> (ø)
unittests-Resources.AWS	74.42% <ø> (ø)
unittests-Resources.Azure	85.31% <ø> (ø)
unittests-Resources.Container	67.34% <ø> (ø)
unittests-Resources.Gcp	71.42% <ø> (ø)
unittests-Resources.Host	73.91% <ø> (ø)
unittests-Resources.OperatingSystem	76.98% <ø> (ø)
unittests-Resources.Process	100.00% <ø> (ø)
unittests-Resources.ProcessRuntime	79.59% <ø> (ø)
unittests-Sampler.AWS	88.25% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...ry.Exporter.Geneva/Internal/TableNameSerializer.cs	98.90% <100.00%> (ø)
....Exporter.OneCollector/Internal/CallbackManager.cs	96.00% <100.00%> (ø)
...OpenTelemetry.Extensions.AWS/AWSXRayIdGenerator.cs	58.90% <100.00%> (ø)
...Wcf/Implementation/RequestTelemetryStateTracker.cs	95.52% <100.00%> (ø)

... and 12 files with indirect coverage changes

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