🤖 I have created a release *beep* *boop*
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### Updating meta-information for bleeding-edge SNAPSHOT release.

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… to v2.29.0 (#1979)

* chore(deps): update dependency com.google.cloud:google-cloud-bigtable to v2.29.0

* 🦉 Updates from OwlBot post-processor

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

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…1883) (#1981)

Source-Link: googleapis/synthtool@2472390
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-java:latest@sha256:fb7584f6adb3847ac480ed49a4bfe1463965026b2919a1be270e3174f3ce1191

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

#1980)

… client, i.e. enable all optional features

Thank you for opening a Pull Request! Before submitting your PR, there are a few things you can do to make sure it goes smoothly:
- [ ] Make sure to open an issue as a [bug/issue](https://togithub.com/googleapis/java-bigtable/issues/new/choose) before writing your code!  That way we can discuss the change, evaluate designs, and agree on the general idea
- [ ] Ensure the tests and linter pass
- [ ] Code coverage does not decrease (if any source code was changed)
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Fixes #<issue_number_goes_here> ☕️

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* add getPageSize() to QueryPaginator

* fix build

* fix lint

* add javadoc

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