Automatic merge from submit-queue (batch tested with PRs 65123, 65176, 65139, 65084, 65056). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Increase fluentd-gcp grace termination period to 1min

By default, all pods have 30s for graceful termination. This gives fluentd additional 30s to export logs e.g. when the node is shutting down.



**What this PR does / why we need it**:

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #

**Special notes for your reviewer**:

**Release note**:

```release-note
fluentd-gcp grace termination period increased to 60s.
```

cc @vishh