update secrets

Author: Rich-Harris

site/now.json

@@ -5,8 +5,8 @@
 	"env": {
 		"NODE_ENV": "production",
 		"BASEURL": "https://svelte.dev",
-		"GITHUB_CLIENT_ID": "@svelte-gist-client-id-v3",
-		"GITHUB_CLIENT_SECRET": "@svelte-gist-client-secret-v3",
+		"GITHUB_CLIENT_ID": "@svelte-dev-client-id",
+		"GITHUB_CLIENT_SECRET": "@svelte-dev-client-secret",
 		"MAPBOX_ACCESS_TOKEN": "@svelte-mapbox-access-token"
 	},
 	"files": [