Bump extern/openPMD-api from 1c7d7ff to d2d8f40 (#762)

Bumps [extern/openPMD-api](https://github.com/openPMD/openPMD-api) from
`1c7d7ff` to `d2d8f40`.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/openPMD/openPMD-api/commit/d2d8f405621264fac46e00636248a65c7a9ab0ce"><code>d2d8f40</code></a>
Script: New Version (<a
href="https://redirect.github.com/openPMD/openPMD-api/issues/1467">#1467</a>)</li>
<li><a
href="https://github.com/openPMD/openPMD-api/commit/88089bcc0edef65d9d5a566a13aeb3a78346de43"><code>88089bc</code></a>
CMake Superbuild: Tarball (<a
href="https://redirect.github.com/openPMD/openPMD-api/issues/1668">#1668</a>)</li>
<li><a
href="https://github.com/openPMD/openPMD-api/commit/ff0c66966116dbb9869338927bf652cd563c0173"><code>ff0c669</code></a>
Independent writes: Make workaround more flexible (<a
href="https://redirect.github.com/openPMD/openPMD-api/issues/1660">#1660</a>)</li>
<li><a
href="https://github.com/openPMD/openPMD-api/commit/016bb8ade2a7440daeaed28acea00ffb208a3bad"><code>016bb8a</code></a>
Allow numpy 2.0 in requirements.txt (<a
href="https://redirect.github.com/openPMD/openPMD-api/issues/1669">#1669</a>)</li>
<li><a
href="https://github.com/openPMD/openPMD-api/commit/b40607a1a853b56647e77ba29c833021384f72ef"><code>b40607a</code></a>
Python Series/Iteration: Fix Length (<a
href="https://redirect.github.com/openPMD/openPMD-api/issues/1659">#1659</a>)</li>
<li><a
href="https://github.com/openPMD/openPMD-api/commit/dc58cc5007cc23a5289444ac50b32c3357f3b42c"><code>dc58cc5</code></a>
CMake Superbuild: Repo &amp; Local Source (<a
href="https://redirect.github.com/openPMD/openPMD-api/issues/1667">#1667</a>)</li>
<li><a
href="https://github.com/openPMD/openPMD-api/commit/87f30e7fac938a1f7804195b78e9e5de90f86b18"><code>87f30e7</code></a>
Remove ThirdParty Directories (<a
href="https://redirect.github.com/openPMD/openPMD-api/issues/1666">#1666</a>)</li>
<li><a
href="https://github.com/openPMD/openPMD-api/commit/570f15544eafd3acf71dca28f4a7ab5f79e609e7"><code>570f155</code></a>
Replace internal dependencies by FetchContent (<a
href="https://redirect.github.com/openPMD/openPMD-api/issues/1583">#1583</a>)</li>
<li>See full diff in <a
href="https://github.com/openPMD/openPMD-api/compare/1c7d7ffc5ef501e1d2dcbd5169b3e5eff677b399...d2d8f405621264fac46e00636248a65c7a9ab0ce">compare
view</a></li>
</ul>
</details>
<br />


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>