chore(deps): bump protobuf from 5.28.2 to 5.28.3 in /_integration-tes…

…ts/utils/agent (#355)

Bumps [protobuf](https://github.com/protocolbuffers/protobuf) from
5.28.2 to 5.28.3.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/protocolbuffers/protobuf/commit/5fda5abda3dee5f7a102c85860594bff8d8610bd"><code>5fda5ab</code></a>
Updating version.json and repo version numbers to: 28.3</li>
<li><a
href="https://github.com/protocolbuffers/protobuf/commit/fe30f9a1d14e8f2b85987d4eed5c5594e6cf801f"><code>fe30f9a</code></a>
Mute the minor version warning <a
href="https://github.com/protocolbuffers/protobuf/is">https://github.com/protocolbuffers/protobuf/is</a>...</li>
<li><a
href="https://github.com/protocolbuffers/protobuf/commit/d82fb4710c08b763064c27dee3849af499641ffa"><code>d82fb47</code></a>
Populate Kotlin Manifest Files (<a
href="https://redirect.github.com/protocolbuffers/protobuf/issues/18859">#18859</a>)</li>
<li><a
href="https://github.com/protocolbuffers/protobuf/commit/ce5174aa57e448ff6ca253fb9a56f3cfe502d2c9"><code>ce5174a</code></a>
Merge pull request <a
href="https://redirect.github.com/protocolbuffers/protobuf/issues/18798">#18798</a>
from protocolbuffers/gberg-cp-28</li>
<li><a
href="https://github.com/protocolbuffers/protobuf/commit/3b62d78dc70d2b43af5998d427452246279363c7"><code>3b62d78</code></a>
Re-export includingDefaultValueFields in deprecated state for important
Cloud...</li>
<li><a
href="https://github.com/protocolbuffers/protobuf/commit/3ea568a9b6107ebf0d617c476f53a31490fd3182"><code>3ea568a</code></a>
cherrypick restoration of mutableCopy helpers</li>
<li><a
href="https://github.com/protocolbuffers/protobuf/commit/fe3bb07da84f50234f5d7fe2b5e3eed46712ea4c"><code>fe3bb07</code></a>
Merge pull request <a
href="https://redirect.github.com/protocolbuffers/protobuf/issues/18616">#18616</a>
from deannagarcia/28.x</li>
<li><a
href="https://github.com/protocolbuffers/protobuf/commit/664a7e1cd37b6743126411d0af16990b92cde055"><code>664a7e1</code></a>
Fix merge conflicts</li>
<li><a
href="https://github.com/protocolbuffers/protobuf/commit/63076f55e0af71b0488878f295b395a464ad21e3"><code>63076f5</code></a>
Merge pull request <a
href="https://redirect.github.com/protocolbuffers/protobuf/issues/18561">#18561</a>
from protocolbuffers/28.x_no_vision_tests</li>
<li><a
href="https://github.com/protocolbuffers/protobuf/commit/22cd8ba0507488a6d73bea728c3fdf0e2594732f"><code>22cd8ba</code></a>
[ObjC] Disabling visionOS on CI.</li>
<li>Additional commits viewable in <a
href="https://github.com/protocolbuffers/protobuf/compare/v5.28.2...v5.28.3">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=protobuf&package-manager=pip&previous-version=5.28.2&new-version=5.28.3)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
that have been made to it
- `@dependabot merge` will merge this PR after your CI passes on it
- `@dependabot squash and merge` will squash and merge this PR after
your CI passes on it
- `@dependabot cancel merge` will cancel a previously requested merge
and block automerging
- `@dependabot reopen` will reopen this PR if it is closed
- `@dependabot close` will close this PR and stop Dependabot recreating
it. You can achieve the same result by closing it manually
- `@dependabot show <dependency name> ignore conditions` will show all
of the ignore conditions of the specified dependency
- `@dependabot ignore this major version` will close this PR and stop
Dependabot creating any more for this major version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this minor version` will close this PR and stop
Dependabot creating any more for this minor version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this dependency` will close this PR and stop
Dependabot creating any more for this dependency (unless you reopen the
PR or upgrade to it yourself)


</details>

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

_integration-tests/utils/agent/requirements.txt

@@ -11,7 +11,7 @@ frozenlist==1.4.1
 idna==3.10
 msgpack==1.1.0
 multidict==6.1.0
-protobuf==5.28.2
+protobuf==5.28.3
 requests==2.32.3
 six==1.16.0
 typing_extensions==4.12.2