deps: update dependency com.google.cloud:google-cloud-bigquery to v2.8.0 (#1216)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-bigquery](https://togithub.com/googleapis/java-bigquery) | `2.7.1` -> `2.8.0` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-bigquery/2.8.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-bigquery/2.8.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-bigquery/2.8.0/compatibility-slim/2.7.1)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-bigquery/2.8.0/confidence-slim/2.7.1)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>googleapis/java-bigquery</summary>

### [`v2.8.0`](https://togithub.com/googleapis/java-bigquery/blob/HEAD/CHANGELOG.md#&#8203;280-httpsgithubcomgoogleapisjava-bigquerycomparev271v280-2022-02-02)

[Compare Source](https://togithub.com/googleapis/java-bigquery/compare/v2.7.1...v2.8.0)

##### Features

-   add Dataset ACL support ([#&#8203;1763](https://togithub.com/googleapis/java-bigquery/issues/1763)) ([18a11e8](https://togithub.com/googleapis/java-bigquery/commit/18a11e88c0be5c0d5cf89d498439d5f8347e589d))

##### Dependencies

-   update dependency com.google.apis:google-api-services-bigquery to v2-rev20220123-1.32.1 ([#&#8203;1819](https://togithub.com/googleapis/java-bigquery/issues/1819)) ([82175f1](https://togithub.com/googleapis/java-bigquery/commit/82175f19634550f8b16c830362798396cd28e79d))
-   update dependency com.google.cloud:google-cloud-bigtable to v2.5.2 ([#&#8203;1821](https://togithub.com/googleapis/java-bigquery/issues/1821)) ([0fe0a78](https://togithub.com/googleapis/java-bigquery/commit/0fe0a78db110794f9d2797bd74792d361acef96c))

##### [2.7.1](https://togithub.com/googleapis/java-bigquery/compare/v2.7.0...v2.7.1) (2022-02-01)

##### Dependencies

-   update dependency com.google.cloud:google-cloud-shared-dependencies to v2.7.0 ([#&#8203;1813](https://togithub.com/googleapis/java-bigquery/issues/1813)) ([f2cfc8b](https://togithub.com/googleapis/java-bigquery/commit/f2cfc8bc5f97359a69ac3647919670bd714ac953))

##### Documentation

-   **samples:** fix CopyMultipleTables sample IT failure and improve a few other samples ([#&#8203;1817](https://togithub.com/googleapis/java-bigquery/issues/1817)) ([e12122c](https://togithub.com/googleapis/java-bigquery/commit/e12122c4472ed4c3d00fc8c7515be210bbf68df3))
-   **samples:** fix GrantViewAccess sample IT failure ([#&#8203;1816](https://togithub.com/googleapis/java-bigquery/issues/1816)) ([d48ae41](https://togithub.com/googleapis/java-bigquery/commit/d48ae41d1437bd9246d973a9f0b56f230a1eea68))

</details>

---

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Author: renovate-bot

samples/install-without-bom/pom.xml

@@ -53,7 +53,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-bigquery</artifactId>
-      <version>2.7.1</version>
+      <version>2.8.0</version>
       <scope>test</scope>
     </dependency>
     <dependency>

samples/snapshot/pom.xml

@@ -53,7 +53,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-bigquery</artifactId>
-      <version>2.7.1</version>
+      <version>2.8.0</version>
       <scope>test</scope>
     </dependency>
     <dependency>

samples/snippets/pom.xml

@@ -65,7 +65,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-bigquery</artifactId>
-      <version>2.7.1</version>
+      <version>2.8.0</version>
       <scope>test</scope>
     </dependency>
     <dependency>