ci: fix eslint issues (#3969)

packages/integrations/image/src/types.ts

@@ -11,6 +11,7 @@ interface ImageIntegration {
 }
 
 declare global {
+	// eslint-disable-next-line no-var
 	var astroImage: ImageIntegration;
 }
 

packages/markdown/remark/src/remark-shiki.ts

@@ -37,6 +37,7 @@ const remarkShiki = async (
 				if (langExists) {
 					lang = node.lang;
 				} else {
+					// eslint-disable-next-line no-console
 					console.warn(`The language "${node.lang}" doesn't exist, falling back to plaintext.`);
 					lang = 'plaintext';
 				}