Update dependency prometheus-net.AspNetCore to v8.2.1

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
prometheus-net.AspNetCore	8.0.1 -> 8.2.1

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Release Notes

prometheus-net/prometheus-net (prometheus-net.AspNetCore)

v8.2.1: 8.2.1 - bugfix for occasional exception on metrics scrape

Fix occasional "Collection was modified" exception when serializing metrics. #​464

v8.2.0: - performance improvements

• .WithLabels() & similar now accept ReadOnlyMemory as alternative to string[]. Same behavior, just easier to use if you already have a ReadOnlyMemory.
• .WithLabels() & similar now accept ReadOnlySpan as alternative to string[]. This enables allocation-free metric instance creation if a metric instance with these labels is already known.
• Incorporated various optimizations to reduce the required CPU time and allocated memory, including #​410, #​443 and other contributions.
• Observation of large histograms is now 10-30% faster on machines that support AVX2 instructions.
• health checks exposed via ForwardToPrometheus() no longer create a default metric if a custom metric is provided #​444

v8.1.1: - fix incorrect UpDownCounter handling in .NET Meters API adapter

• Fix bug in .NET Meters API adapter for UpDownCounter, which was incorrectly transformed to Prometheus metrics. #​452 and #​453

v8.1.0: - Add support for capturing HttpClient metrics from all registered HttpClients

Add support for capturing HttpClient metrics from all registered HttpClients (services.UseHttpClientMetrics()).

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