[js/webgpu] Add FusedConv clip test case (#18900)

Bug: #18899

Author: axinging

js/web/test/data/ops/fused-conv.jsonc

@@ -108,5 +108,39 @@
         ]
       }
     ]
+  },
+  {
+    "name": "fused conv with clip",
+    "operator": "FusedConv",
+    "attributes": [
+      { "name": "activation", "data": "Clip", "type": "string" },
+      { "name": "kernel_shape", "data": [2, 2], "type": "ints" },
+      { "name": "activation_params", "data": [400.0, 600.0], "type": "floats" }
+    ],
+    "opset": { "domain": "com.microsoft", "version": 1 },
+    "cases": [
+      {
+        "name": "T[0]",
+        "inputs": [
+          {
+            "data": [10, 20, 30, 40, 50, 60, 70, 80, 90],
+            "dims": [1, 1, 3, 3],
+            "type": "float32"
+          },
+          {
+            "data": [1, 2, 3, 4],
+            "dims": [1, 1, 2, 2],
+            "type": "float32"
+          }
+        ],
+        "outputs": [
+          {
+            "data": [400, 470, 600, 600],
+            "dims": [1, 1, 2, 2],
+            "type": "float32"
+          }
+        ]
+      }
+    ]
   }
 ]