docs: recommend lambda-packager - #1359

Version 2.11.0 and later of google-gax contains a fix that should reduce memory consumption somewhat when opening and closing clients multiple times.

Updates #1306

* feat: Add support for partialSuccess global configuration

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

* feat: add publisher flow control library support

* chore: exorcise promisifyAll() from the rest of the library

* feat: finish up working publisher side flow control in the library itself

* feat: another pass at the flow control support in the library

* chore: water the linters

* tests: add a test for the new sample

* fix: updates from code reviews and merges from other PRs

* fix: shift from deferredCatch() to PublishWhenReadyOptions

* tests: update unit tests

* build: pin typescript to 4.3.x for generated samples (4.4 breaks catch types)

* samples: add sample for publisher flow control, and a test for the sample

* 🦉 Updates from OwlBot

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* docs: revert "🦉 Updates from OwlBot" because it's not in `main` yet

This reverts commit 3ce3f637ef0dfaa579edcf109a4fd4cf8f8efc31.

* fix: renamed a few flow control things in response to API feedback

* tests: remove all messages from the test subscription after testing publishWithFlowControl

* feat: redo publisher flow control API, once more with feeling

* lint: fix a nit

* samples: update publisher flow control sample, js flavour

* chore: updates from CI results and self-review

* chore: fixes from comments on the PR

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

🤖 I have created a release \*beep\* \*boop\*
---
## [2.18.0](https://www.github.com/googleapis/nodejs-pubsub/compare/v2.17.0...v2.18.0) (2021-09-23)


### Features

* add publisher side flow control ([#1359](https://www.github.com/googleapis/nodejs-pubsub/issues/1359)) ([cc0f61b](https://www.github.com/googleapis/nodejs-pubsub/commit/cc0f61b18258bae0be1a5962a93970cc15dcd304))


### Bug Fixes

* update default RPC retry timeouts to match other languages ([#1399](https://www.github.com/googleapis/nodejs-pubsub/issues/1399)) ([8c1afee](https://www.github.com/googleapis/nodejs-pubsub/commit/8c1afeee26fbff84448b1a9576e4c4ef5c67f9cc))
---


This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please).

* feat: add publisher flow control library support

* chore: exorcise promisifyAll() from the rest of the library

* feat: finish up working publisher side flow control in the library itself

* feat: another pass at the flow control support in the library

* chore: water the linters

* tests: add a test for the new sample

* fix: updates from code reviews and merges from other PRs

* fix: shift from deferredCatch() to PublishWhenReadyOptions

* tests: update unit tests

* build: pin typescript to 4.3.x for generated samples (4.4 breaks catch types)

* samples: add sample for publisher flow control, and a test for the sample

* 🦉 Updates from OwlBot

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* docs: revert "🦉 Updates from OwlBot" because it's not in `main` yet

This reverts commit 3ce3f637ef0dfaa579edcf109a4fd4cf8f8efc31.

* fix: renamed a few flow control things in response to API feedback

* tests: remove all messages from the test subscription after testing publishWithFlowControl

* feat: redo publisher flow control API, once more with feeling

* lint: fix a nit

* samples: update publisher flow control sample, js flavour

* chore: updates from CI results and self-review

* chore: fixes from comments on the PR

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

🤖 I have created a release \*beep\* \*boop\*
---
## [2.18.0](https://www.github.com/googleapis/nodejs-pubsub/compare/v2.17.0...v2.18.0) (2021-09-23)


### Features

* add publisher side flow control ([#1359](https://www.github.com/googleapis/nodejs-pubsub/issues/1359)) ([6ae02d3](https://www.github.com/googleapis/nodejs-pubsub/commit/6ae02d3abb841ee5a5e0d8b367137dfdd6866aeb))


### Bug Fixes

* update default RPC retry timeouts to match other languages ([#1399](https://www.github.com/googleapis/nodejs-pubsub/issues/1399)) ([8c1afee](https://www.github.com/googleapis/nodejs-pubsub/commit/8c1afeee26fbff84448b1a9576e4c4ef5c67f9cc))
---


This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please).