CONFIG: Update NuGet dependencies and ADotNet 5.1.0 regen

[perirrs]

Summary

NuGet currency pass for MeshClient - brings every unpinned package to latest stable and completes the ADotNet 5.1.0 rollout (bump + workflow regen). Supersedes dependabot #212/#213/#214 (they auto-close on merge).

closes AB#29755

Dependency updates (CONFIG, one per commit)

• Microsoft.Extensions family 10.0.9 -> 10.0.10 (Configuration, Json, Binder, EnvironmentVariables, DependencyInjection, Hosting - coupled family, one commit; this is why dependabot's one-at-a-time bumps CONFIG: Bump Microsoft.Extensions.Configuration and 5 others #214 failed)
• Microsoft.NET.Test.Sdk 18.7.0 -> 18.8.1
• WireMock.Net 2.11.0 -> 2.13.0 (clears the Scriban.Signed moderate transitive vulnerability)
• ADotNet 5.0.0 -> 5.1.0

Workflow regeneration (CODE RUB)

• prLinter.yml regenerated from NEL.MESH.Infrastructure (run from bin dir, verified idempotent, no stray output): 5.1.0 expanded MINOR/MEDIUM/MAJOR label prefixes + SetAuthorAsPrAssignee try/catch hardening. Generator-produced, not hand-edited.

Validation (local)

• Build Release: 0 errors (each bump build-gated)
• dotnet list package --vulnerable --include-transitive: none (was 1 moderate via WireMock 2.11.0)
• FluentAssertions remains locked [7.2.2]

Note for reviewer

Christo's older PRs #152/#154 (May 2025, conflicting) touch some of the same csproj files - left untouched here; worth deciding their fate when he is back.

[Copilot]

Pull request overview

Updates MeshClient’s NuGet dependencies to newer stable versions and completes the ADotNet 5.1.0 rollout, alongside a regenerated PR linter workflow to support expanded title-prefix labeling and more resilient PR author assignment.

Changes:

• Bumped Microsoft.Extensions.* packages from 10.0.9 to 10.0.10 across relevant projects.
• Updated test/dependency packages (Microsoft.NET.Test.Sdk 18.8.1, WireMock.Net 2.13.0) and ADotNet to 5.1.0.
• Regenerated .github/workflows/prLinter.yml to expand accepted PR title prefixes and harden assignee-setting via try/catch.

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
NEL.MESH/NEL.MESH.csproj	Bumps Microsoft.Extensions.DependencyInjection/Hosting to 10.0.10.
NEL.MESH.UI/NEL.MESH.UI.csproj	Bumps Microsoft.Extensions.Configuration family to 10.0.10.
NEL.MESH.Tests.Unit/NEL.MESH.Tests.Unit.csproj	Updates Microsoft.Extensions.* and Microsoft.NET.Test.Sdk versions.
NEL.MESH.Tests.Integration/NEL.MESH.Tests.Integration.csproj	Updates Microsoft.Extensions.* and Microsoft.NET.Test.Sdk versions.
NEL.MESH.Tests.Integration.Witness/NEL.MESH.Tests.Integration.Witness.csproj	Updates Microsoft.Extensions.* and Microsoft.NET.Test.Sdk versions.
NEL.MESH.Tests.Acceptance/NEL.MESH.Tests.Acceptance.csproj	Updates Microsoft.Extensions.*, Microsoft.NET.Test.Sdk, and WireMock.Net versions.
NEL.MESH.Infrastructure/NEL.MESH.Infrastructure.csproj	Bumps ADotNet dependency from 5.0.0 to 5.1.0.
.github/workflows/prLinter.yml	Expands allowed PR title prefixes and wraps assignee assignment in try/catch.