fix(deps): update dependency com.google.api:api-common to v2.6.0

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
com.google.api:api-common	`2.3.1` -> `2.6.0`

Release Notes

googleapis/gapic-generator-java

### [`v2.6.0`](https://togithub.com/googleapis/gapic-generator-java/blob/HEAD/CHANGELOG.md#260-httpsgithubcomgoogleapisgapic-generator-javacomparev250v260-2022-01-28) [Compare Source](https://togithub.com/googleapis/gapic-generator-java/compare/v2.5.0...v2.6.0) ##### Features - Support explicit dynamic routing header ([#887](https://togithub.com/googleapis/gapic-generator-java/issues/887)) ([bcc1bdb](https://togithub.com/googleapis/gapic-generator-java/commit/bcc1bdb5fdf57d8843a03318d746df7d8392d848)) ##### Bug Fixes - increase default memory for Gradle builds on generated libraries ([#907](https://togithub.com/googleapis/gapic-generator-java/issues/907)) ([d210aa1](https://togithub.com/googleapis/gapic-generator-java/commit/d210aa193d45ba5fbdea6ae5f31e471401c27cb7)) ### [`v2.5.0`](https://togithub.com/googleapis/gapic-generator-java/blob/HEAD/CHANGELOG.md#250-httpsgithubcomgoogleapisgapic-generator-javacomparev241v250-2022-01-22) [Compare Source](https://togithub.com/googleapis/gapic-generator-java/compare/v2.4.0...v2.5.0) ##### Features - add server streaming support for REST transport ([#902](https://togithub.com/googleapis/gapic-generator-java/issues/902)) ([3b2dec6](https://togithub.com/googleapis/gapic-generator-java/commit/3b2dec6adf46823eeb6859e93362e63f00d84ffc)) - make generated test values comply with url path template ([#903](https://togithub.com/googleapis/gapic-generator-java/issues/903)) ([bfb35cd](https://togithub.com/googleapis/gapic-generator-java/commit/bfb35cd31c05b5fbd2ea8073bcdcfdd3496bca12)) ##### [2.4.1](https://togithub.com/googleapis/gapic-generator-java/compare/v2.4.0...v2.4.1) (2022-01-14) ##### Bug Fixes - expose extra deps transitively to library users ([#899](https://togithub.com/googleapis/gapic-generator-java/issues/899)) ([8fa2660](https://togithub.com/googleapis/gapic-generator-java/commit/8fa2660022cf65ebed011165378683173989332b)) - fix broken Gradle allJars task on generated libs ([#901](https://togithub.com/googleapis/gapic-generator-java/issues/901)) ([e990105](https://togithub.com/googleapis/gapic-generator-java/commit/e99010596d85f891a738de71be3b5fb9c857594a)) ### [`v2.4.0`](https://togithub.com/googleapis/gapic-generator-java/blob/HEAD/CHANGELOG.md#240-httpsgithubcomgoogleapisgapic-generator-javacomparev231v240-2022-01-11) [Compare Source](https://togithub.com/googleapis/gapic-generator-java/compare/v2.3.1...v2.4.0) ##### Features - add `install` "alias" for local publication ([#897](https://togithub.com/googleapis/gapic-generator-java/issues/897)) ([662d1ba](https://togithub.com/googleapis/gapic-generator-java/commit/662d1ba2dab831a7927159b85c196caf28f13cc7)) ##### [2.3.1](https://www.github.com/googleapis/gapic-generator-java/compare/v2.3.0...v2.3.1) (2022-01-10) ##### Bug Fixes - fix Gradle build error for sourcesJar task on generated libs ([#894](https://www.togithub.com/googleapis/gapic-generator-java/issues/894)) ([1060a1a](https://www.github.com/googleapis/gapic-generator-java/commit/1060a1af874d9be3f89c567635630f5ad6f8e830))