Adding `CurrentTransferRate ` in the flowrate package because only the status of the transfer rate has been used.

Bumps [google.golang.org/grpc](https://github.com/grpc/grpc-go) from 1.44.0 to 1.45.0.
<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 1.45.0</h2>
<h1>Bug Fixes</h1>
<ul>
<li>xds/clusterresolver: pass cluster name to DNS child policy to be used in creds handshake (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/5119">#5119</a>)</li>
<li>reflection: support dynamic messages (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/5180">#5180</a>)
<ul>
<li>Special Thanks: <a href="https://github.com/codebutler"><code>@​codebutler</code></a></li>
</ul>
</li>
</ul>
<h1>Performance Improvements</h1>
<ul>
<li>wrr: improve randomWRR performance (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/5067">#5067</a>)
<ul>
<li>Special Thanks: <a href="https://github.com/huangchong94"><code>@​huangchong94</code></a></li>
</ul>
</li>
</ul>
<h1>Behavior Changes</h1>
<ul>
<li>server: convert context errors returned by service handlers to status with the correct status code (<code>Canceled</code> or <code>DeadlineExceeded</code>), instead of <code>Unknown</code> (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/5156">#5156</a>)</li>
</ul>
<h1>New Features</h1>
<ul>
<li>reflection: add <code>NewServer(ServerOptions)</code> for creating a reflection server with advanced customizations (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/5197">#5197</a>)</li>
<li>xds: support federation (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/5128">#5128</a>)</li>
<li>xds/resource: accept Self as LDS's RDS config source and CDS's EDS config source (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/5152">#5152</a>)</li>
<li>xds/bootstrap: add plugin system for credentials specified in bootstrap file (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/5136">#5136</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="a82cc96f07"><code>a82cc96</code></a> Change version to 1.45.0 (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/5202">#5202</a>)</li>
<li><a href="011544f729"><code>011544f</code></a> authz: add additional logs to sdk authz (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/5094">#5094</a>)</li>
<li><a href="18564ff61d"><code>18564ff</code></a> reflection: improve server implementation (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/5197">#5197</a>)</li>
<li><a href="ec717cad73"><code>ec717ca</code></a> xds: minor cleanup in xdsclient bootstrap code (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/5195">#5195</a>)</li>
<li><a href="ebc30b8fc3"><code>ebc30b8</code></a> reflection: use protobuf/reflect instead of go reflection, fix dynamic messag...</li>
<li><a href="46009ac902"><code>46009ac</code></a> transport: Add an Unwrap method to ConnectionError (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/5148">#5148</a>)</li>
<li><a href="75fd0240ac"><code>75fd024</code></a> remove sdk term from grpc authz (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/5191">#5191</a>)</li>
<li><a href="a354b1eec3"><code>a354b1e</code></a> channelz: rename NewChannelzStorage to NewChannelzStorageForTesting (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/5190">#5190</a>)</li>
<li><a href="0e055491d5"><code>0e05549</code></a> Format directory/file references (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/5184">#5184</a>)</li>
<li><a href="c44f627fd1"><code>c44f627</code></a> cleanup: replace grpc.WithInsecure with insecure.NewCredentials (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/5177">#5177</a>)</li>
<li>Additional commits viewable in <a href="https://github.com/grpc/grpc-go/compare/v1.44.0...v1.45.0">compare view</a></li>
</ul>
</details>
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Co-authored-by: M. J. Fromberger <fromberger@interchain.io>

Co-authored-by: M. J. Fromberger <fromberger@interchain.io>