chore(deps-dev): bump rollup from 2.39.1 to 2.40.0

Bumps [rollup](https://github.com/rollup/rollup) from 2.39.1 to 2.40.0.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/rollup/rollup/blob/master/CHANGELOG.md">rollup's changelog</a>.</em></p>
<blockquote>
<h2>2.40.0</h2>
<p><em>2021-02-26</em></p>
<h3>Features</h3>
<ul>
<li>Make sure that entry point variable names take precedence over variable names in dependencies when deconflicting (<a href="https://github-redirect.dependabot.com/rollup/rollup/issues/3977">#3977</a>)</li>
</ul>
<h3>Bug Fixes</h3>
<ul>
<li>Replace <code>:</code> in generated file names to prevent invalid files on Windows (<a href="https://github-redirect.dependabot.com/rollup/rollup/issues/3972">#3972</a>)</li>
</ul>
<h3>Pull Requests</h3>
<ul>
<li><a href="https://github-redirect.dependabot.com/rollup/rollup/pull/3972">#3972</a>: Don't allow <code>:</code> in file names (<a href="https://github.com/lukastaegert"><code>@​lukastaegert</code></a>)</li>
<li><a href="https://github-redirect.dependabot.com/rollup/rollup/pull/3976">#3976</a>: Add soft breaks to guide to improve mobile experience (<a href="https://github.com/lukastaegert"><code>@​lukastaegert</code></a>)</li>
<li><a href="https://github-redirect.dependabot.com/rollup/rollup/pull/3977">#3977</a>: Reverse module deconflicting order (<a href="https://github.com/lukastaegert"><code>@​lukastaegert</code></a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/rollup/rollup/commit/0a0958ff926554abe9916178f56762ba71301ddd"><code>0a0958f</code></a> 2.40.0</li>
<li><a href="https://github.com/rollup/rollup/commit/01dc9d9f1a73f3b8c311258a5000b8f572e2c37e"><code>01dc9d9</code></a> Update changelog</li>
<li><a href="https://github.com/rollup/rollup/commit/b254672ed500c09dd209e9b0efaa8091feca7342"><code>b254672</code></a> Reverse module deconflicting order (<a href="https://github-redirect.dependabot.com/rollup/rollup/issues/3977">#3977</a>)</li>
<li><a href="https://github.com/rollup/rollup/commit/85304f2c3cdd476b73e91af21855eece5bc94ee0"><code>85304f2</code></a> Don't allow <code>:</code> in file names. (<a href="https://github-redirect.dependabot.com/rollup/rollup/issues/3972">#3972</a>)</li>
<li><a href="https://github.com/rollup/rollup/commit/9b8c94d1d847362d075291a24ecde079be3e2aa5"><code>9b8c94d</code></a> Add soft breaks to guide to improve mobile experience (<a href="https://github-redirect.dependabot.com/rollup/rollup/issues/3976">#3976</a>)</li>
<li>See full diff in <a href="https://github.com/rollup/rollup/compare/v2.39.1...v2.40.0">compare view</a></li>
</ul>
</details>
<br />


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</details>

package.json

@@ -62,7 +62,7 @@
     "jest": "^26.6.3",
     "jest-junit": "^12.0.0",
     "prettier": "^2.2.1",
-    "rollup": "^2.39.1",
+    "rollup": "^2.40.0",
     "standard-version": "^9.1.1",
     "ts-jest": "^26.5.2",
     "ts-node": "^9.1.1",