Fix lint formatting issues in env-utils package

- Add trailing newlines to tsconfig.json and biome.json
- Resolves CI lint failures in Build, Lint & Test step

Related to BUS-1477

Co-Authored-By: nate@buster.so <nate@buster.so>

packages/env-utils/biome.json

@@ -4,4 +4,4 @@
   "files": {
     "include": ["src/**/*"]
   }
-}
+}

packages/env-utils/tsconfig.json

@@ -7,4 +7,4 @@
   },
   "include": ["src/**/*"],
   "exclude": ["node_modules", "dist"]
-}
+}