System Tests Failure

[shivanee-p]

Our system tests are failing due to 2 different root causes:

1. Several templates evaluate a cjs file as ts
2. type conflict between @sinonjs/fake-timers and @types/sinonjs__fake-timers

[shivanee-p]

There are several generator updates that have been merged to fix the template CJS issue:

• PR fix: upgrade the generator to protobuf 31 and bazel 7.7.1, and update templates to fix system test #7943
• PR chore(main): release gapic-generator 4.11.13 #7956
  but we have been blocked releasing the new version of the generator. cl/895417751 updates the relevant WORKSPACES to point to the correct generator post monorepo migration (Update generator references to reflect monorepo migration #7966 ), but it's blocked upon submission due to various kokoro presubmits.

[shivanee-p]

Update: the new generator has been released and #7966 is closed

[pearigee]

Package "sample" tests are also failing or flaky. This is blocking my fix to item 2 (the sinonjs conflict) in https://github.com/googleapis/google-cloud-node/pull/7995/changes .

A few examples:

• For example google-cloud-apigeeregistry is failing with a random DEADLINE_EXCEEDED.

• Another one, for google-area120-tables, we get a UNIMPLEMENTED: Received HTTP status code 404. This product is down (maybe intentionally turned down?) and their service is unreachable.