Fix typo in eslint rule

.eslintrc.json

@@ -58,7 +58,7 @@
       "parser": "@angular-eslint/template-parser",
       "plugins": ["@angular-eslint/template"],
       "rules": {
-          "@angular-eslint/template/banana-in-a-box": "error",
+          "@angular-eslint/template/banana-in-box": "error",
           "@angular-eslint/template/no-negated-async": "error"
       }
     }