fix(HTTP Request Node): Respect the original encoding of the incoming response (#9869)

packages/nodes-base/nodes/HttpRequest/test/encoding/encoding.test.json

@@ -0,0 +1,78 @@
+{
+  "name": "Response Encoding Test",
+  "nodes": [
+    {
+      "parameters": {},
+      "name": "When clicking \"Execute Workflow\"",
+      "type": "n8n-nodes-base.manualTrigger",
+      "typeVersion": 1,
+      "position": [
+        180,
+        820
+      ],
+      "id": "635fb102-a760-4b9e-836c-82e71bba7974"
+    },
+    {
+      "parameters": {
+        "url": "https://dummy.domain/index.html",
+        "options": {}
+      },
+      "name": "HTTP Request (v3)",
+      "type": "n8n-nodes-base.httpRequest",
+      "typeVersion": 3,
+      "position": [
+        520,
+        720
+      ],
+      "id": "eb243cfd-fbd6-41ef-935d-4ea98617355f"
+    },
+    {
+      "parameters": {
+        "url": "https://dummy.domain/index.html",
+        "options": {}
+      },
+      "name": "HTTP Request (v4)",
+      "type": "n8n-nodes-base.httpRequest",
+      "typeVersion": 4,
+      "position": [
+        520,
+        920
+      ],
+      "id": "cc2f185d-df6a-4fa3-b7f4-29f0dbad0f9b"
+    }
+  ],
+  "connections": {
+    "When clicking \"Execute Workflow\"": {
+      "main": [
+        [
+          {
+            "node": "HTTP Request (v3)",
+            "type": "main",
+            "index": 0
+          },
+          {
+            "node": "HTTP Request (v4)",
+            "type": "main",
+            "index": 0
+          }
+        ]
+      ]
+    }
+  },
+  "pinData": {
+    "HTTP Request (v3)": [
+      {
+        "json": {
+          "data": "El rápido zorro marrón salta sobre el perro perezoso. ¡Qué bello día en París! Árbol, cañón, façade."
+        }
+      }
+    ],
+    "HTTP Request (v4)": [
+      {
+        "json": {
+          "data": "El rápido zorro marrón salta sobre el perro perezoso. ¡Qué bello día en París! Árbol, cañón, façade."
+        }
+      }
+    ]
+  }
+}