Plugins: Do not fail bootstrap stage if single decorate step fails (#73147)

* don't fail all if decorate step fails

* fix casing

* include err too

* cover pluginsintegration too

pkg/plugins/manager/installer.go

@@ -128,7 +128,7 @@ func (m *PluginInstaller) Add(ctx context.Context, pluginID, version string, opt
 
 	_, err = m.pluginLoader.Load(ctx, sources.NewLocalSource(plugins.ClassExternal, pathsToScan))
 	if err != nil {
-		m.log.Error("Could not load plugins", "paths", pathsToScan, "err", err)
+		m.log.Error("Could not load plugins", "paths", pathsToScan, "error", err)
 		return err
 	}