Bump coverallsapp/github-action from 2.2.3 to 2.3.0 (#5852)

Bumps
[coverallsapp/github-action](https://github.com/coverallsapp/github-action)
from 2.2.3 to 2.3.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/coverallsapp/github-action/releases">coverallsapp/github-action's
releases</a>.</em></p>
<blockquote>
<h2>v2.3.0</h2>
<h2>What's Changed</h2>
<ul>
<li>Set default values as strings per GH Action requirements by <a
href="https://github.com/littleforest"><code>@​littleforest</code></a>
in <a
href="https://redirect.github.com/coverallsapp/github-action/pull/204">coverallsapp/github-action#204</a></li>
<li>Allow pinning of coverage reporter version by <a
href="https://github.com/littleforest"><code>@​littleforest</code></a>
in <a
href="https://redirect.github.com/coverallsapp/github-action/pull/208">coverallsapp/github-action#208</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a
href="https://github.com/littleforest"><code>@​littleforest</code></a>
made their first contribution in <a
href="https://redirect.github.com/coverallsapp/github-action/pull/204">coverallsapp/github-action#204</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/coverallsapp/github-action/compare/v2.2.3...v2.3.0">https://github.com/coverallsapp/github-action/compare/v2.2.3...v2.3.0</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/coverallsapp/github-action/commit/643bc377ffa44ace6394b2b5d0d3950076de9f63"><code>643bc37</code></a>
Allow pinning of coverage reporter version (<a
href="https://redirect.github.com/coverallsapp/github-action/issues/208">#208</a>)</li>
<li><a
href="https://github.com/coverallsapp/github-action/commit/1064f6c98ce6c077d375b3eb0549bf5022961452"><code>1064f6c</code></a>
Set default values as strings per GH Action requirements (<a
href="https://redirect.github.com/coverallsapp/github-action/issues/204">#204</a>)</li>
<li><a
href="https://github.com/coverallsapp/github-action/commit/c203f016dd0ff7855ebef0ed852000c20c117148"><code>c203f01</code></a>
Update README.md</li>
<li>See full diff in <a
href="https://github.com/coverallsapp/github-action/compare/3dfc5567390f6fa9267c0ee9c251e4c8c3f18949...643bc377ffa44ace6394b2b5d0d3950076de9f63">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=coverallsapp/github-action&package-manager=github_actions&previous-version=2.2.3&new-version=2.3.0)](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
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that have been made to it
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and block automerging
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it. You can achieve the same result by closing it manually
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Dependabot creating any more for this major version (unless you reopen
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the PR or upgrade to it yourself)
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Dependabot creating any more for this dependency (unless you reopen the
PR or upgrade to it yourself)


</details>

.github/workflows/cov.yaml

@@ -43,7 +43,7 @@ jobs:
       - name: Coveralls
         # Use commit hash here to avoid a re-tagging attack, as this is a third-party action
         # Commit 3dfc5567390f6fa9267c0ee9c251e4c8c3f18949 = tag v2
-        uses: coverallsapp/github-action@3dfc5567390f6fa9267c0ee9c251e4c8c3f18949
+        uses: coverallsapp/github-action@643bc377ffa44ace6394b2b5d0d3950076de9f63
         with:
           github-token: ${{ secrets.github_token }}
           file: src/github.com/nats-io/nats-server/coverage.lcov