False positive with new style gradle test suite definition

**Build scan link**

**Plugin version**
2.0.2

**Gradle version**
8.10.1

**JDK version**
17

**(Optional) Kotlin and Kotlin Gradle Plugin (KGP) version**
NA

**(Optional) Android Gradle Plugin (AGP) version**
NA

**(Optional) `reason` output for bugs relating to incorrect advice**
warns junit -jupiter not needed at by testImplementation, but that dep is not explicitly present, nor is it shown by depedency-tree output.

```
Advice for root project
Unused dependencies which should be removed:
testImplementation 'org junit jupiter: junit-jupiter:5.11.0'
```

**Describe the bug**
Gradle now offers "suite" concept for configuring junit with

```
testing {
suites {
configureEach {
useJunitJupiter(junitVersion)

**To Reproduce**
Steps to reproduce the behavior:
1. ... run buildHealth

**Expected behavior**
health passes

**Additional context**

Reproduce the report with Gradle 8.10.1, JDK 17, plugin 2.0.2, and the testing.suites configuration using useJunitJupiter, then run buildHealth. Trace how the plugin identifies the junit-jupiter dependency and compare that with Gradle's suite-managed dependency; done means buildHealth no longer reports the dependency as unused.

Written by the indexing model from the issue text.