chore: release 6.17.0 (googleapis#1558)

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chore: release 6.16.0 (googleapis#1555)

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chore: release 6.15.2 (googleapis#1538)

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chore(6.4.4-sp): release 6.4.4-sp.4 (googleapis#1550)

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chore: release 6.15.1 (googleapis#1529)

🤖 I have created a release \*beep\* \*boop\*
---
### [6.15.1](https://www.github.com/googleapis/java-spanner/compare/v6.15.0...v6.15.1) (2021-10-27)


### Dependencies

* upgrade Mockito to version 4.x ([googleapis#1498](https://www.github.com/googleapis/java-spanner/issues/1498)) ([09bd561](https://www.github.com/googleapis/java-spanner/commit/09bd56157827119586fd3e0a1ee056bb793d08e3))
---


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

chore: release 6.15.0 (googleapis#1527)

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chore: release 6.14.0 (googleapis#1511)

🤖 I have created a release \*beep\* \*boop\*
---
## [6.14.0](https://www.github.com/googleapis/java-spanner/compare/v6.13.0...v6.14.0) (2021-10-25)


### Features

* Introduce Native Image testing build script changes ([googleapis#1500](https://www.github.com/googleapis/java-spanner/issues/1500)) ([7a034c9](https://www.github.com/googleapis/java-spanner/commit/7a034c9120ffa433f64e67d565c854f1fb3ce9f5))


### Bug Fixes

* **java:** java 17 dependency arguments ([googleapis#1512](https://www.github.com/googleapis/java-spanner/issues/1512)) ([4cebefa](https://www.github.com/googleapis/java-spanner/commit/4cebefa1ce6502d48c2e2e0a3a484f60eeed450f))


### Dependencies

* update dependency com.google.cloud:google-cloud-monitoring to v3.1.0 ([googleapis#1506](https://www.github.com/googleapis/java-spanner/issues/1506)) ([ea35b27](https://www.github.com/googleapis/java-spanner/commit/ea35b2723fcc8c255ab0e52306e066c689c6a0c6))
* update dependency com.google.cloud:google-cloud-shared-dependencies to v2.4.0 ([googleapis#1501](https://www.github.com/googleapis/java-spanner/issues/1501)) ([d5a37b8](https://www.github.com/googleapis/java-spanner/commit/d5a37b8853fc21a28b6610b2933ed31fcbe206e2))
* update dependency com.google.cloud:google-cloud-trace to v2.0.6 ([googleapis#1504](https://www.github.com/googleapis/java-spanner/issues/1504)) ([667b8b1](https://www.github.com/googleapis/java-spanner/commit/667b8b17cc2f8d217ecda0af89bdc668670f3aab))
---


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

chore(5.2.x): release 5.2.2 (googleapis#1469)

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chore(4.0.x): release 4.0.4 (googleapis#1468)

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chore(3.1.x): release 3.1.5 (googleapis#1467)

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