Update logo reference to use GitHub URL instead of local file

Author: Debanitrkl

src/plugin.json

@@ -17,8 +17,8 @@
     },
     "keywords": ["datasource", "logging", "log observability", "log analytics", "parseable"],
     "logos": {
-      "small": "img/logo.svg",
-      "large": "img/logo.svg"
+      "small": "https://github.com/parseablehq/.github/blob/main/images/logo.svg",
+      "large": "https://github.com/parseablehq/.github/blob/main/images/logo.svg"
     },
     "links": [
       {"name": "GitHub", "url": "https://github.com/parseablehq/parseable-datasource"},