Update eslint to v9 (#35485)

Update eslint and all plugins. Many plugins still do not ship type
definitions so I had to add stubs. Also, I had to put a few typescript
error expectations because if some unknown error in the types.

`eslint-plugin-no-jquery` is disabled because it's not compatible with
eslint 9 flat config
(https://github.com/wikimedia/eslint-plugin-no-jquery/issues/311).

web_src/js/features/repo-issue.ts

@@ -64,7 +64,7 @@ function initRepoIssueLabelFilter(elDropdown: HTMLElement) {
     selectedLabelIds.add(`${Math.abs(parseInt(id))}`); // "labels" contains negative ids, which are excluded
   }
 
-  const excludeLabel = (e: MouseEvent|KeyboardEvent, item: Element) => {
+  const excludeLabel = (e: MouseEvent | KeyboardEvent, item: Element) => {
     e.preventDefault();
     e.stopPropagation();
     const labelId = item.getAttribute('data-label-id');