fix: use path.resolve for custom reporters to be compatible with yarn…

… PnP cypress-io#18922

packages/server/lib/reporter.js

@@ -528,7 +528,7 @@ class Reporter {
     // that is local (./custom-reporter.js)
     // or one installed by the user through npm
     try {
-      p = path.resolve(projectRoot, reporterName)
+      const p = require.resolve(reporterName, { paths: [projectRoot] })
 
       // try local
       debug('trying to require local reporter with path:', p)