Add missing fallback for missing Jimp dependencies (#2257)

* Add missing fallback for missing Jimp dependencies

* lint

lib/support/images/index.js

@@ -1,6 +1,9 @@
 import path from 'node:path';
 import { pathToFolder } from '../pathToFolder.js';
 import { loadCustomJimp } from '../../screenshot/loadCustomJimp.js';
+import { getLogger } from '@sitespeed.io/log';
+const log = getLogger('browsertime');
+
 export async function savePngWithoutResize(
   name,
   data,
@@ -38,6 +41,11 @@ export async function savePng(
       buffer,
       path.join(pathToFolder(url, options), dir)
     );
+  } else {
+    log.info(
+      'Missing Jimp dependency so you can only save images as png at viewport size'
+    );
+    return savePngWithoutResize(name, data, url, storageManager, dir, options);
   }
 }
 export async function saveJpg(
@@ -63,5 +71,10 @@ export async function saveJpg(
       buffer,
       path.join(pathToFolder(url, options), dir)
     );
+  } else {
+    log.info(
+      'Missing Jimp dependency so you can only save images as png at viewport size'
+    );
+    return savePngWithoutResize(name, data, url, storageManager, dir, options);
   }
 }