Plugins: Improve levitate / breaking changes report in grafana/grafana (#89822)

* Plugins: Add gcloud auth and usage to levitate workflow

---------

Co-authored-by: Levente Balogh <balogh.levente.hu@gmail.com>

scripts/levitate-parse-json-report.js

@@ -1,5 +1,7 @@
 const fs = require('fs');
 
+const printAffectedPluginsSection = require('./levitate-show-affected-plugins');
+
 const data = JSON.parse(fs.readFileSync('data.json', 'utf8'));
 
 function stripAnsi(str) {
@@ -28,4 +30,6 @@ if (data.changes.length > 0) {
   markdown += printSection('Changes', data.changes);
 }
 
+markdown += printAffectedPluginsSection(data);
+
 console.log(markdown);