chore: release 2.6.0 (#583)
chore: release 2.6.0 (#583)

:robot: I have created a release \*beep\* \*boop\*
---
## [2.6.0](https://www.github.com/googleapis/nodejs-compute/compare/v2.5.1...v2.6.0) (2021-06-29)


### Features

* Adding implementation of startWithEncryptionKey api call ([#539](https://www.github.com/googleapis/nodejs-compute/issues/539)) ([f8018a6](https://www.github.com/googleapis/nodejs-compute/commit/f8018a61bf0b986d6ad2d5a9216c5bcfb4bdcc6f))
---


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