deps: update dependency com.google.cloud:google-cloud-networkconnecti…

…vity-bom to v1.2.6 (#5253)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-networkconnectivity-bom](https://togithub.com/googleapis/java-networkconnectivity) | `1.2.5` -> `1.2.6` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-networkconnectivity-bom/1.2.6/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-networkconnectivity-bom/1.2.6/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-networkconnectivity-bom/1.2.6/compatibility-slim/1.2.5)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-networkconnectivity-bom/1.2.6/confidence-slim/1.2.5)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

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

### [`v1.2.6`](https://togithub.com/googleapis/java-networkconnectivity/blob/HEAD/CHANGELOG.md#&#8203;126-httpsgithubcomgoogleapisjava-networkconnectivitycomparev125v126-2022-09-27)

[Compare Source](https://togithub.com/googleapis/java-networkconnectivity/compare/v1.2.5...v1.2.6)

##### Dependencies

-   Update dependency cachetools to v5 ([#&#8203;303](https://togithub.com/googleapis/java-networkconnectivity/issues/303)) ([6c19fbd](https://togithub.com/googleapis/java-networkconnectivity/commit/6c19fbdd9967f2cbf4105e77838d4f2dc4d7ab29))
-   Update dependency jinja2 to v3.1.2 ([#&#8203;297](https://togithub.com/googleapis/java-networkconnectivity/issues/297)) ([a19a37b](https://togithub.com/googleapis/java-networkconnectivity/commit/a19a37bcd3d98edb5ab797e0d841946608a29172))
-   Update dependency pyjwt to v2.5.0 ([#&#8203;299](https://togithub.com/googleapis/java-networkconnectivity/issues/299)) ([9a3f0c8](https://togithub.com/googleapis/java-networkconnectivity/commit/9a3f0c848667f747c9705b3a2fd4178239b94620))
-   Update dependency requests to v2.28.1 ([#&#8203;300](https://togithub.com/googleapis/java-networkconnectivity/issues/300)) ([a91cd1f](https://togithub.com/googleapis/java-networkconnectivity/commit/a91cd1f00ef8d052cc5ab34650c94a27aaaec2c6))

</details>

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google-cloud-bom/pom.xml

@@ -573,7 +573,7 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-networkconnectivity-bom</artifactId>
-        <version>1.2.5</version>
+        <version>1.2.6</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>