build(deps): Bump google.golang.org/grpc from 1.69.2 to 1.69.4 (#6610)

Bumps [google.golang.org/grpc](https://github.com/grpc/grpc-go) from 1.69.2 to 1.69.4.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/grpc/grpc-go/releases">google.golang.org/grpc's releases</a>.</em></p>
<blockquote>
<h2>Release 1.69.4</h2>
<h1>Bug Fixes</h1>
<ul>
<li>rbac: fix support for :path header matchers, which would previously never successfully match (<a href="https://redirect.github.com/grpc/grpc-go/issues/7965">#7965</a>).</li>
</ul>
<h1>Documentation</h1>
<ul>
<li>examples/features/csm_observability: update example client and server to use the helloworld service instead of echo service (<a href="https://redirect.github.com/grpc/grpc-go/issues/7945">#7945</a>).</li>
</ul>
<p>Release 1.69.3 was accidentally tagged on the master branch and will be deleted. Please update to 1.69.4 instead.</p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/grpc/grpc-go/commit/4103cfc52a951673d441f8b2c02eee96e31f1897"><code>4103cfc</code></a> Change version to 1.69.4 (<a href="https://redirect.github.com/grpc/grpc-go/issues/8005">#8005</a>)</li>
<li><a href="https://github.com/grpc/grpc-go/commit/cf6ddaa06db9da8bcdc23e682b72dcf831abfda8"><code>cf6ddaa</code></a> Change version to 1.69.4-dev (<a href="https://redirect.github.com/grpc/grpc-go/issues/8001">#8001</a>)</li>
<li><a href="https://github.com/grpc/grpc-go/commit/94a0c2cbfc5fa21cdc3f2a3eecad7f5ae5e23e99"><code>94a0c2c</code></a> Change version to 1.69.3 (<a href="https://redirect.github.com/grpc/grpc-go/issues/8000">#8000</a>)</li>
<li><a href="https://github.com/grpc/grpc-go/commit/ec415604a2f817c7c44fbadfa3f7983c9f6ab8d5"><code>ec41560</code></a> Cherry pick <a href="https://redirect.github.com/grpc/grpc-go/issues/7965">#7965</a> <a href="https://redirect.github.com/grpc/grpc-go/issues/7945">#7945</a> to v1.69.x (<a href="https://redirect.github.com/grpc/grpc-go/issues/7996">#7996</a>)</li>
<li><a href="https://github.com/grpc/grpc-go/commit/3b328ba4d21148e7d4526e938b0b2cde611b388f"><code>3b328ba</code></a> Change version to 1.69.3-dev (<a href="https://redirect.github.com/grpc/grpc-go/issues/7948">#7948</a>)</li>
<li>See full diff in <a href="https://github.com/grpc/grpc-go/compare/v1.69.2...v1.69.4">compare view</a></li>
</ul>
</details>
<br />


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</details>

go.mod

@@ -60,7 +60,7 @@ require (
 	golang.org/x/sync v0.10.0
 	golang.org/x/time v0.9.0
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20250106144421-5f5ef82da422
-	google.golang.org/grpc v1.69.2
+	google.golang.org/grpc v1.69.4
 	google.golang.org/protobuf v1.36.2
 	k8s.io/api v0.32.0
 	k8s.io/apimachinery v0.32.0

go.sum

@@ -950,8 +950,8 @@ google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQ
 google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
 google.golang.org/grpc v1.29.1/go.mod h1:itym6AZVZYACWQqET3MqgPpjcuV5QH3BxFS3IjizoKk=
 google.golang.org/grpc v1.33.2/go.mod h1:JMHMWHQWaTccqQQlmk3MJZS+GWXOdAesneDmEnv2fbc=
-google.golang.org/grpc v1.69.2 h1:U3S9QEtbXC0bYNvRtcoklF3xGtLViumSYxWykJS+7AU=
-google.golang.org/grpc v1.69.2/go.mod h1:vyjdE6jLBI76dgpDojsFGNaHlxdjXN9ghpnd2o7JGZ4=
+google.golang.org/grpc v1.69.4 h1:MF5TftSMkd8GLw/m0KM6V8CMOCY6NZ1NQDPGFgbTt4A=
+google.golang.org/grpc v1.69.4/go.mod h1:vyjdE6jLBI76dgpDojsFGNaHlxdjXN9ghpnd2o7JGZ4=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=