Bump io.confluent:kafka-avro-serializer from 7.8.1 to 7.9.0 (#5097)

Bumps
[io.confluent:kafka-avro-serializer](https://github.com/confluentinc/schema-registry)
from 7.8.1 to 7.9.0.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/confluentinc/schema-registry/commit/9634697712781ffd344ba1cbb27ced6a810b8b13"><code>9634697</code></a>
Set Confluent to 7.9.0, Kafka to 7.9.0.</li>
<li><a
href="https://github.com/confluentinc/schema-registry/commit/61a224039da6c116703724903c96e8fd540e9c55"><code>61a2240</code></a>
making buildConnectionProtected (<a
href="https://redirect.github.com/confluentinc/schema-registry/issues/3517">#3517</a>)</li>
<li><a
href="https://github.com/confluentinc/schema-registry/commit/104b133714c20fe8c8811a4fe3a6b64901dddb71"><code>104b133</code></a>
Merge branch '7.8.x' into 7.9.x by djibodu</li>
<li><a
href="https://github.com/confluentinc/schema-registry/commit/2fb18a7efd30fc4ef9ec8f944d6dd5318e279410"><code>2fb18a7</code></a>
Merge branch '7.7.x' into 7.8.x by djibodu</li>
<li><a
href="https://github.com/confluentinc/schema-registry/commit/d8e02d5739c5bcb86d306aa8b6e300e7d3bad911"><code>d8e02d5</code></a>
DGS-11414: add pagination for get all subjects (<a
href="https://redirect.github.com/confluentinc/schema-registry/issues/3455">#3455</a>)</li>
<li><a
href="https://github.com/confluentinc/schema-registry/commit/51c6546d5f97e3fc8ed4da5ca9351714465397b5"><code>51c6546</code></a>
Merge branch '7.8.x' into 7.9.x by rayokota</li>
<li><a
href="https://github.com/confluentinc/schema-registry/commit/c9b4d1cd65f183e4517b4c799b52207767129626"><code>c9b4d1c</code></a>
Merge branch '7.7.x' into 7.8.x by rayokota</li>
<li><a
href="https://github.com/confluentinc/schema-registry/commit/a3d786dbb4a1a66cc1c66eb3d1dff0e21b423b9a"><code>a3d786d</code></a>
Merge branch '7.6.x' into 7.7.x by rayokota</li>
<li><a
href="https://github.com/confluentinc/schema-registry/commit/7be77ea625cbf4955f25bd4908f76cc084cd6b9d"><code>7be77ea</code></a>
DGS-19528 Fix equivalence checks for JSON and Protobuf (<a
href="https://redirect.github.com/confluentinc/schema-registry/issues/3515">#3515</a>)</li>
<li><a
href="https://github.com/confluentinc/schema-registry/commit/c5c33a4616f615874e265a78ef70b88a9632bcc1"><code>c5c33a4</code></a>
MINOR fix build for JDK 17 (<a
href="https://redirect.github.com/confluentinc/schema-registry/issues/3513">#3513</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/confluentinc/schema-registry/compare/v7.8.1...v7.9.0">compare
view</a></li>
</ul>
</details>
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pom.xml

@@ -52,7 +52,7 @@
         <maven.model.version>3.9.9</maven.model.version>
         <awaitility-kotlin.version>4.2.0</awaitility-kotlin.version>
         <avro.version>1.12.0</avro.version>
-        <confluent.version>7.8.1</confluent.version>
+        <confluent.version>7.9.0</confluent.version>
         <sonar.organization>navikt</sonar.organization>
         <sonar.host.url>https://sonarcloud.io</sonar.host.url>
         <sonar.sources>src/main</sonar.sources>