chore(deps): update dependency com.google.cloud:google-cloud-spanner-jdbc to v2.7.0 (googleapis#880)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-spanner-jdbc](https://github.com/googleapis/java-spanner-jdbc) | `2.6.4` -> `2.7.0` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-spanner-jdbc/2.7.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-spanner-jdbc/2.7.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-spanner-jdbc/2.7.0/compatibility-slim/2.6.4)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-spanner-jdbc/2.7.0/confidence-slim/2.6.4)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>googleapis/java-spanner-jdbc</summary>

### [`v2.7.0`](https://github.com/googleapis/java-spanner-jdbc/blob/HEAD/CHANGELOG.md#&#8203;270-httpsgithubcomgoogleapisjava-spanner-jdbccomparev264v270-2022-05-24)

[Compare Source](https://github.com/googleapis/java-spanner-jdbc/compare/v2.6.4...v2.7.0)

##### Features

-   add build scripts for native image testing in Java 17 ([#&#8203;1440](https://github.com/googleapis/java-spanner-jdbc/issues/1440)) ([#&#8203;875](https://github.com/googleapis/java-spanner-jdbc/issues/875)) ([600e401](https://github.com/googleapis/java-spanner-jdbc/commit/600e4017e0b2e52e7a2f42ffca88b1326be03a31))

##### Dependencies

-   bump Spanner to 6.23.3 ([#&#8203;862](https://github.com/googleapis/java-spanner-jdbc/issues/862)) ([b7b8efa](https://github.com/googleapis/java-spanner-jdbc/commit/b7b8efa80cdef9a827c85d469176463001c14b94)), closes [#&#8203;788](https://github.com/googleapis/java-spanner-jdbc/issues/788)
-   update dependency com.google.cloud:google-cloud-shared-dependencies to v2.12.0 ([#&#8203;874](https://github.com/googleapis/java-spanner-jdbc/issues/874)) ([d403f54](https://github.com/googleapis/java-spanner-jdbc/commit/d403f5414cf593e239140f5bbf89b06608167fbf))
-   update opencensus.version to v0.31.1 ([#&#8203;865](https://github.com/googleapis/java-spanner-jdbc/issues/865)) ([61ba9be](https://github.com/googleapis/java-spanner-jdbc/commit/61ba9be15018c198a00d8f2e69121470c3da2ce0))

##### [2.6.4](https://github.com/googleapis/java-spanner-jdbc/compare/v2.6.3...v2.6.4) (2022-04-21)

##### Dependencies

-   update dependency com.google.cloud:google-cloud-shared-dependencies to v2.10.0 ([#&#8203;798](https://github.com/googleapis/java-spanner-jdbc/issues/798)) ([a77024c](https://github.com/googleapis/java-spanner-jdbc/commit/a77024cd0611e69c501d466c6759329f69cb1953))

##### [2.6.3](https://github.com/googleapis/java-spanner-jdbc/compare/v2.6.2...v2.6.3) (2022-03-29)

##### Dependencies

-   update dependency com.google.cloud:google-cloud-shared-dependencies to v2.9.0 ([#&#8203;789](https://github.com/googleapis/java-spanner-jdbc/issues/789)) ([5fd7287](https://github.com/googleapis/java-spanner-jdbc/commit/5fd7287861029acc1179cac8b604e435aa8b0666))

##### [2.6.2](https://github.com/googleapis/java-spanner-jdbc/compare/v2.6.1...v2.6.2) (2022-03-14)

##### Dependencies

-   update dependency com.google.cloud:google-cloud-spanner-bom to v6.21.2 ([#&#8203;783](https://github.com/googleapis/java-spanner-jdbc/issues/783)) ([1625ad0](https://github.com/googleapis/java-spanner-jdbc/commit/1625ad0e5a827e6cbf68bf6a3bd18eb4b02fc62b))

##### [2.6.1](https://github.com/googleapis/java-spanner-jdbc/compare/v2.6.0...v2.6.1) (2022-03-02)

##### Dependencies

-   update dependency com.google.cloud:google-cloud-shared-dependencies to v2.8.0 ([#&#8203;770](https://github.com/googleapis/java-spanner-jdbc/issues/770)) ([4f32b2d](https://github.com/googleapis/java-spanner-jdbc/commit/4f32b2d6031870c386b37f574d2107f446ed7db7))

</details>

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Author: renovate-bot

samples/install-without-bom/pom.xml

@@ -29,7 +29,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-spanner-jdbc</artifactId>
-      <version>2.6.4</version>
+      <version>2.7.0</version>
     </dependency>
     <!-- [END spanner-jdbc_install_without_bom] -->