Trying to upgrade from eslint 8 to eslint 9 on a exsting SF project mainly LWC

[thesunlover]

Oops! Something went wrong! :(

ESLint: 9.28.0

TypeError: Converting circular structure to JSON
    --> starting at object with constructor 'Object'
    |     property 'configs' -> object with constructor 'Object'   
    |     property 'flat/all' -> object with constructor 'Object'  
    |     property 'plugins' -> object with constructor 'Object'   
    --- property 'jest' closes the circle
Referenced from:
    at JSON.stringify (<anonymous>)
    at node_modules\@eslint\eslintrc\dist\eslintrc.cjs:2255:45  
    at Array.map (<anonymous>)
    at ConfigValidator.formatErrors (node_modules\@eslint\eslintrc\dist\eslintrc.cjs:2246:23)
    at ConfigValidator.validateConfigSchema (node_modules\@eslint\eslintrc\dist\eslintrc.cjs:2277:84)
    at ConfigArrayFactory._normalizeConfigData (node_modules\@eslint\eslintrc\dist\eslintrc.cjs:3123:19)
    at ConfigArrayFactory._loadConfigData (node_modules\@eslint\eslintrc\dist\eslintrc.cjs:3088:21)
    at ConfigArrayFactory._loadExtendedShareableConfig (node_modules\@eslint\eslintrc\dist\eslintrc.cjs:3393:21)
    at ConfigArrayFactory._loadExtends (node_modules\@eslint\eslintrc\dist\eslintrc.cjs:3261:25)
    at ConfigArrayFactory._normalizeObjectConfigDataBody (node_modules\@eslint\eslintrc\dist\eslintrc.cjs:3199:25)

[thesunlover]

I've raised the issue elsewhere
salesforce/eslint-config-lwc#159