Bump examples/codelabs from 0b74e56 to 19de7d3 (#11073)

Bumps [examples/codelabs](https://github.com/flutter/codelabs) from
`0b74e56` to `19de7d3`.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/flutter/codelabs/commit/19de7d3c19b39765ffbca798bc7a6c7f52013e34"><code>19de7d3</code></a>
Bump github/codeql-action from 3.26.3 to 3.26.4 (<a
href="https://redirect.github.com/flutter/codelabs/issues/2231">#2231</a>)</li>
<li>See full diff in <a
href="https://github.com/flutter/codelabs/compare/0b74e56a1fdde11ac34ce9708fd53006b15eb870...19de7d3c19b39765ffbca798bc7a6c7f52013e34">compare
view</a></li>
</ul>
</details>
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