Forbid variables containing jQuery collections not having the $ prefix (#29839)

See
https://github.com/wikimedia/eslint-plugin-no-jquery/blob/master/docs/rules/variable-pattern.md

---------

Signed-off-by: Yarden Shoham <git@yardenshoham.com>
Co-authored-by: silverwind <me@silverwind.io>

web_src/js/components/RepoBranchTagSelector.vue

@@ -123,7 +123,7 @@ const sfc = {
       return -1;
     },
     scrollToActive() {
-      let el = this.$refs[`listItem${this.active}`];
+      let el = this.$refs[`listItem${this.active}`]; // eslint-disable-line no-jquery/variable-pattern
       if (!el || !el.length) return;
       if (Array.isArray(el)) {
         el = el[0];