[Eng] Move test resource projects under tests/resources

[jviau]

Issue describing the changes in this PR

resolves #issue_for_this_pr

Pull request checklist

• My changes do not require documentation changes
  • Otherwise: Documentation issue linked to PR
• My changes should not be added to the release notes for the next release
  • Otherwise: I've added my notes to release_notes.md
• My changes do not need to be backported to a previous version
  • Otherwise: Backport tracked by issue/PR #issue_or_pr
• I have added all required tests (Unit tests, E2E tests)

Additional information

This PR relocates some test resources to be all contained under the /tests/resources folder, to keep them separate from actual test projects.

[Copilot]

Pull Request Overview

This PR reorganizes test resource projects by relocating them from the root test/ directory into a new test/Resources/ subdirectory structure, specifically under test/Resources/Extensions/ and test/Resources/Projects/. Additionally, the PR updates test dependencies in one test project to more recent versions.

• Moved sample extension projects to test/Resources/Extensions/
• Moved dependent assembly test projects to test/Resources/Projects/
• Updated test package references in Worker.ApplicationInsights.Tests to latest versions (Microsoft.NET.Test.Sdk 17.11.1, Moq 4.20.71, xunit 2.9.0, xunit.runner.visualstudio 2.8.2)

Reviewed Changes

Copilot reviewed 5 out of 75 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
test/Worker.ApplicationInsights.Tests/Worker.ApplicationInsights.Tests.csproj	Updates test package dependencies to current versions used across the solution
test/Sdk.Generator.Tests/Sdk.Generator.Tests.csproj	Updates project references to point to new resource locations under test/Resources/
test/Resources/Projects/DependentAssemblyWithFunctions/*.cs	New location for test project source files with Azure Functions samples
test/Resources/Projects/DependentAssemblyWithFunctions/*.csproj	Project files for test resources moved from root test directory
test/Resources/Projects/DependentAssemblyWithFunctions.NetStandard/*.cs	NetStandard test project sources relocated to Resources folder
test/Resources/Projects/DependentAssemblyWithFunctions.NetStandard/*.csproj	NetStandard test project configuration relocated to Resources folder
test/Resources/Extensions/Worker.Extensions.Sample/*.cs	Sample extension implementation moved to organized Resources structure
test/Resources/Extensions/Worker.Extensions.Sample/*.csproj	Sample extension project file relocated with incorrect project reference path
test/Resources/Extensions/Worker.Extensions.Sample-IncorrectImplementation/*.cs	Intentionally incorrect extension sample moved to Resources folder
test/Resources/Extensions/Worker.Extensions.Sample-IncorrectImplementation/*.csproj	Project file for incorrect implementation sample with invalid project reference
DotNetWorker.sln	Updates solution file structure to reflect new resource organization under a dedicated solution folder

Comments suppressed due to low confidence (2)

test/Resources/Extensions/Worker.Extensions.Sample/Worker.Extensions.Sample.csproj:8

• The project reference path is incorrect. From test/Resources/Extensions/Worker.Extensions.Sample/, the relative path ..\..\src\ only goes up 2 levels to test/Resources/, not to the repository root. The correct path should be ..\..\..\..\src\DotNetWorker.Core\DotNetWorker.Core.csproj to properly reference the source project.
  test/Resources/Extensions/Worker.Extensions.Sample-IncorrectImplementation/Worker.Extensions.Sample-IncorrectImplementation.csproj:8
• The project reference path is incorrect. From test/Resources/Extensions/Worker.Extensions.Sample-IncorrectImplementation/, the relative path ..\..\src\ only goes up 2 levels to test/Resources/, not to the repository root. The correct path should be ..\..\..\..\src\DotNetWorker.Core\DotNetWorker.Core.csproj to properly reference the source project.

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