deps: update dependency com.google.cloud:google-cloud-dialogflow-bom to v4.7.0 (#4612)

[![Mend Renovate](https://app.renovatebot.com/images/banner.svg)](https://renovatebot.com)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-dialogflow-bom](https://togithub.com/googleapis/java-dialogflow) | `4.6.0` -> `4.7.0` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-dialogflow-bom/4.7.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-dialogflow-bom/4.7.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-dialogflow-bom/4.7.0/compatibility-slim/4.6.0)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-dialogflow-bom/4.7.0/confidence-slim/4.6.0)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

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

### [`v4.7.0`](https://togithub.com/googleapis/java-dialogflow/blob/HEAD/CHANGELOG.md#&#8203;470-httpsgithubcomgoogleapisjava-dialogflowcomparev460v470-2022-07-01)

[Compare Source](https://togithub.com/googleapis/java-dialogflow/compare/v4.6.0...v4.7.0)

##### Features

-   Enable REST transport for most of Java and Go clients ([#&#8203;941](https://togithub.com/googleapis/java-dialogflow/issues/941)) ([d6f38e7](https://togithub.com/googleapis/java-dialogflow/commit/d6f38e7d669e449c7faad49790845c96d513839c))

##### Bug Fixes

-   update gapic-generator-java with mock service generation fixes ([#&#8203;943](https://togithub.com/googleapis/java-dialogflow/issues/943)) ([f7e4206](https://togithub.com/googleapis/java-dialogflow/commit/f7e4206f5371cd93d7de45d9a6c7ba92c0348ee2))

##### Dependencies

-   update dependency com.google.cloud:google-cloud-core to v2.8.0 ([#&#8203;939](https://togithub.com/googleapis/java-dialogflow/issues/939)) ([7f769d0](https://togithub.com/googleapis/java-dialogflow/commit/7f769d0fd3f821e06c3a9139f2fe74b429184d25))
-   update dependency com.google.cloud:google-cloud-shared-dependencies to v2.13.0 ([#&#8203;940](https://togithub.com/googleapis/java-dialogflow/issues/940)) ([305b0ac](https://togithub.com/googleapis/java-dialogflow/commit/305b0ac476b238673e94b54d3102652e9d12db36))

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update again.

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, click this checkbox.

---

This PR has been generated by [Mend Renovate](https://www.mend.io/free-developer-tools/renovate/). View repository job log [here](https://app.renovatebot.com/dashboard#github/googleapis/java-cloud-bom).

Author: renovate-bot

google-cloud-bom/pom.xml

@@ -394,7 +394,7 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-dialogflow-bom</artifactId>
-        <version>4.6.0</version>
+        <version>4.7.0</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>