new icon: logstash (original, original-wordmark, plain, plain-wordmark) (devicons#1256)

* new icon: logstash (original, original-wordmark, plain, plain-wordmark)

* logstash| fix width height on original

Author: kilianpaquier

devicon.json

@@ -7196,6 +7196,26 @@
             }
         ]
     },
+    {
+        "name": "logstash",
+        "altnames": [],
+        "tags": [
+            "logs",
+            "elastic"
+        ],
+        "versions": {
+            "svg": [
+                "original-wordmark",
+                "original"
+            ],
+            "font": [
+                "plain-wordmark",
+                "plain"
+            ]
+        },
+        "color": "#fec514",
+        "aliases": []
+    },
     {
         "name": "beats",
         "altnames": [],