deps(dotnet): Bump Sentry and Sentry.NLog (#19)

* deps(dotnet): Bump Sentry and Sentry.NLog

Bumps Sentry from 5.0.0 to 6.0.0
Bumps Sentry.NLog from 5.0.0 to 6.0.0

---
updated-dependencies:
- dependency-name: Sentry
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: Sentry.NLog
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

* fix: adapt to Sentry 5.x API - BreadcrumbLevel.Critical removed

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Karl Bauer <karl.bauer@bauer-group.com>

Author: dependabot[bot]

src/BAUERGROUP.Shared.Core/ErrorTracking/BGErrorTrackingTarget.cs

@@ -119,9 +119,8 @@ private static SentryLevel MapToSentryLevel(LogLevel level)
 
         private static BreadcrumbLevel MapToBreadcrumbLevel(LogLevel level)
         {
-            if (level == LogLevel.Fatal)
-                return BreadcrumbLevel.Critical;
-            if (level == LogLevel.Error)
+            // Sentry 5.x removed BreadcrumbLevel.Critical - Fatal maps to Error
+            if (level == LogLevel.Fatal || level == LogLevel.Error)
                 return BreadcrumbLevel.Error;
             if (level == LogLevel.Warn)
                 return BreadcrumbLevel.Warning;