Bump acquire-common from 882cad3 to 6f4e6ff (#116)

Bumps
[acquire-common](https://github.com/acquire-project/acquire-common) from
`882cad3` to `6f4e6ff`.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/acquire-project/acquire-common/commit/6f4e6ff976b313d5046fbfc3703a17399fe6440c"><code>6f4e6ff</code></a>
Move <code>reserve_image_shape</code> from <code>acquire_start</code> to
<code>acquire_configure</code> (<a
href="https://redirect.github.com/acquire-project/acquire-common/issues/33">#33</a>)</li>
<li>See full diff in <a
href="https://github.com/acquire-project/acquire-common/compare/882cad3d1c70c1016b0a7fc2dbb8c813528733da...6f4e6ff976b313d5046fbfc3703a17399fe6440c">compare
view</a></li>
</ul>
</details>
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