fix: trim non-cycle stack elements in a cyclic dependency

internal/dep_tree/.render_test/Weird cycle combination.json

@@ -0,0 +1,18 @@
+{
+  "tree": {
+    "0": {
+      "1": {
+        "2": null
+      }
+    }
+  },
+  "circularDependencies": [
+    [
+      "2",
+      "3",
+      "4",
+      "2"
+    ]
+  ],
+  "errors": {}
+}

internal/dep_tree/.render_test/Weird cycle combination.txt

@@ -0,0 +1,8 @@
+0        
+│        
+└▷1      
+  │4◁───┐
+  ││    │
+  └┴▷2  │
+     │  │
+     └▷3┘

internal/dep_tree/level.go

@@ -66,9 +66,17 @@ func (lc *LevelCalculator[T]) calculateLevel(
 		var level int
 		ctx, level = lc.calculateLevel(ctx, parent.Id, stack)
 		if level == cyclic {
+			cycleStack := []string{parent.Id}
+			for _, stackElement := range stack {
+				cycleStack = append(cycleStack, stackElement)
+				if stackElement == parent.Id {
+					break
+				}
+			}
+
 			lc.Cycles.Set(dep, DepCycle{
 				Cause: dep,
-				Stack: append([]string{parent.Id}, stack...),
+				Stack: cycleStack,
 			})
 		} else if level > maxLevel {
 			maxLevel = level

internal/dep_tree/level_test.go

@@ -82,6 +82,18 @@ func TestNode_Level(t *testing.T) {
 			ExpectedLevels: []int{0, 3, 4, 1, 2},
 			ExpectedCycles: [][]string{{"1", "2", "3", "4", "1"}},
 		},
+		{
+			Name: "Cycle 6",
+			Children: map[int][]int{
+				0: {1},
+				1: {2},
+				2: {3},
+				3: {4},
+				4: {2},
+			},
+			ExpectedLevels: []int{0, 1, 2, 3, 1},
+			ExpectedCycles: [][]string{{"2", "3", "4", "2"}},
+		},
 		{
 			Name: "Avoid same level",
 			Children: map[int][]int{

internal/dep_tree/render_test.go

@@ -61,6 +61,16 @@ func TestRenderGraph(t *testing.T) {
 				{1},
 			},
 		},
+		{
+			Name: "Weird cycle combination",
+			Spec: [][]int{
+				0: {1},
+				1: {2},
+				2: {3},
+				3: {4},
+				4: {2},
+			},
+		},
 		{
 			Name: "Some nodes have errors",
 			Spec: [][]int{