test: fix flaky simple project name assertion

The .project file defined name '1.helloworld' but JDT LS may override it
with the folder name 'simple'. Align .project name with folder name to
eliminate the inconsistency.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: wenytang-ms

test/simple-suite/projectView.test.ts

@@ -18,7 +18,7 @@ suite("Simple Project View Tests", () => {
         const roots = await explorer.dataProvider.getChildren();
         assert.equal(roots?.length, 1, "Number of root node should be 1");
         const projectNode = roots![0] as ProjectNode;
-        assert.equal(projectNode.name, "1.helloworld", "Project name should be \"1.helloworld\"");
+        assert.equal(projectNode.name, "simple", "Project name should be \"simple\"");
 
         // validate package root/dependency nodes
         const projectChildren = await projectNode.getChildren();

test/simple/.project

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <projectDescription>
-	<name>1.helloworld</name>
+	<name>simple</name>
 	<comment></comment>
 	<projects>
 	</projects>