DOP-3999 Exclude oldgen jobs from "don't send notifications of non-GC builds" logic (#904)

* DOP-3999 notify oldgen jobs

* DOP-3999 autobuilder php-library

* DOP-3999 rollback last change

* DOP-3999 undid package-lock changes

* DOP-3999 undid package-lock.json changes

* DOP-3999 use isNextGen field

* DOP-3999 fixed if statement

Author: anabellabuckvar

src/job/jobHandler.ts

@@ -105,7 +105,7 @@ export abstract class JobHandler {
         // completed after the Gatsby Cloud build via the SnootyBuildComplete lambda.
         const { _id: jobId, user } = this.currJob;
         const gatsbyCloudSiteId = await this._repoEntitlementsRepo.getGatsbySiteIdByGithubUsername(user);
-        if (gatsbyCloudSiteId && this.currJob.payload.jobType === 'githubPush') {
+        if (this.currJob.payload.isNextGen && gatsbyCloudSiteId && this.currJob.payload.jobType === 'githubPush') {
           this.logger.info(
             jobId,
             `User ${user} has a Gatsby Cloud site. The Autobuilder will not mark the build as completed right now.`