fix(linter): false positive with unknown plugins when unmatched eslint rule (#12285)

What's happening is some config files have rules such as:
`constructor-super`, this gets mapped to `unknown_plugin/constructor-super`, which means we try to load the "unknown_plugin" (which doesn't exist, hence causing the error).

Since using only the rule's name as the rules identifier in the config file is only supported for eslint rules, we can just map this back to the `eslint` plugin

Author: camc314

crates/oxc_linter/src/config/rules.rs

@@ -225,7 +225,9 @@ fn parse_rule_key(name: &str) -> (String, String) {
             RULES
                 .iter()
                 .find(|r| r.name() == name)
-                .map_or("unknown_plugin", RuleEnum::plugin_name)
+                // plugins under the `eslint` scope are the only rules that are supported
+                // to exist in the config file under just the rule name (no plugin)
+                .map_or("eslint", RuleEnum::plugin_name)
                 .to_string(),
             name.to_string(),
         );
@@ -344,7 +346,7 @@ mod test {
 
         let r3 = rules.next().unwrap();
         assert_eq!(r3.rule_name, "dummy");
-        assert_eq!(r3.plugin_name, "unknown_plugin");
+        assert_eq!(r3.plugin_name, "eslint");
         assert!(r3.severity.is_warn_deny());
         assert_eq!(r3.config, Some(serde_json::json!(["arg1", "args2"])));