Bump extern/amrex from 7418556 to 83ecf62 (#694)

Bumps [extern/amrex](https://github.com/AMReX-Codes/amrex) from
`7418556` to `83ecf62`.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/AMReX-Codes/amrex/commit/83ecf62e0b4363e1fa8dd83f3e68e9046d329496"><code>83ecf62</code></a>
Catalyst support (<a
href="https://github.com/AMReX-Codes/amrex/issues/4011">#4011</a>)</li>
<li><a
href="https://github.com/AMReX-Codes/amrex/commit/a8c525572b33024f316562aded96f5a81f905409"><code>a8c5255</code></a>
Fix typos in FaceDivFree interior interpolation. (<a
href="https://github.com/AMReX-Codes/amrex/issues/4048">#4048</a>)</li>
<li><a
href="https://github.com/AMReX-Codes/amrex/commit/20e6f2eadf0c297517588ba38973ec7c7084fa31"><code>20e6f2e</code></a>
ParmParse: Fix assertion in new queryarr for IntVect &amp; RealVect (<a
href="https://github.com/AMReX-Codes/amrex/issues/4051">#4051</a>)</li>
<li><a
href="https://github.com/AMReX-Codes/amrex/commit/6975ae0ed5ca51ec95268f323bdc705dab4fe571"><code>6975ae0</code></a>
ParmParse: Read IntVect &amp; RealVect from array (<a
href="https://github.com/AMReX-Codes/amrex/issues/4050">#4050</a>)</li>
<li><a
href="https://github.com/AMReX-Codes/amrex/commit/80b0c7ea3dbc097fc0ddd263f544aacf812e4b13"><code>80b0c7e</code></a>
IParser: Use long long int (<a
href="https://github.com/AMReX-Codes/amrex/issues/4046">#4046</a>)</li>
<li><a
href="https://github.com/AMReX-Codes/amrex/commit/fd1633e4be1146206ebcee6aed03933135ea960a"><code>fd1633e</code></a>
ParmParse: Math expression support (<a
href="https://github.com/AMReX-Codes/amrex/issues/4032">#4032</a>)</li>
<li><a
href="https://github.com/AMReX-Codes/amrex/commit/11d31e5f787d9357f1c153e8cbd55462bffd7e41"><code>11d31e5</code></a>
AmrData: remove dependency on Fortran (<a
href="https://github.com/AMReX-Codes/amrex/issues/4049">#4049</a>)</li>
<li><a
href="https://github.com/AMReX-Codes/amrex/commit/d9dec56e2201e25fd36324a4788ed64c943e1045"><code>d9dec56</code></a>
Remove reliance on managed memory in HDF5 mesh IO (<a
href="https://github.com/AMReX-Codes/amrex/issues/4047">#4047</a>)</li>
<li><a
href="https://github.com/AMReX-Codes/amrex/commit/3cb7f1555494ce443922d66e31fba94bead52fe6"><code>3cb7f15</code></a>
New Feature in MLEBNodeFDLaplacian: MultiFab sigma coefficient (<a
href="https://github.com/AMReX-Codes/amrex/issues/3968">#3968</a>)</li>
<li><a
href="https://github.com/AMReX-Codes/amrex/commit/930e75ea9d02a46278a802ea886d950f4c8d1a90"><code>930e75e</code></a>
Nodal Solver: Use multi-color Gauss-Seidel on GPU (<a
href="https://github.com/AMReX-Codes/amrex/issues/4043">#4043</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/AMReX-Codes/amrex/compare/7418556773c74827478767d2a58c9220cf5900b3...83ecf62e0b4363e1fa8dd83f3e68e9046d329496">compare
view</a></li>
</ul>
</details>
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