Lock out petsc 3.21

petsc(4py) 3.21.2 crashes when running tests in parallel:

```
mesh2D (examples.cahnHilliard)
Doctest: examples.cahnHilliard.mesh2D ...  Internal error 1 in DMUMPS_LOAD_RECV_MSGS           1
 Internal error 1 in DMUMPS_LOAD_RECV_MSGS           1
 Internal error 2 in DMUMPS_LOAD_RECV_MSGS  1275068685          52
 Internal error 1 in DMUMPS_LOAD_PROCESS_MESSAGE
 Internal error 1 in DMUMPS_LOAD_RECV_MSGS           1
Abort(-99) on node 0 (rank 0 in comm 0): application called MPI_Abort(MPI_COMM_WORLD, -99) - process 0
Abort(-99) on node 1 (rank 1 in comm 0): application called MPI_Abort(MPI_COMM_WORLD, -99) - process 1
Abort(-99) on node 1 (rank 1 in comm 0): application called MPI_Abort(MPI_COMM_WORLD, -99) - process 1
Abort(-99) on node 0 (rank 0 in comm 0): application called MPI_Abort(MPI_COMM_WORLD, -99) - process 0
Abort(-99) on node 0 (rank 0 in comm 0): application called MPI_Abort(MPI_COMM_WORLD, -99) - process 0
Abort(-99) on node 0 (rank 0 in comm 0): application called MPI_Abort(MPI_COMM_WORLD, -99) - process 0
Abort(-99) on node 1 (rank 1 in comm 0): application called MPI_Abort(MPI_COMM_WORLD, -99) - process 1
Abort(-99) on node 1 (rank 1 in comm 0): application called MPI_Abort(MPI_COMM_WORLD, -99) - process 1
Abort(-99) on node 1 (rank 1 in comm 0): application called MPI_Abort(MPI_COMM_WORLD, -99) - process 1
Abort(-99) on node 0 (rank 0 in comm 0): application called MPI_Abort(MPI_COMM_WORLD, -99) - process 0
Abort(-99) on node 1 (rank 1 in comm 0): application called MPI_Abort(MPI_COMM_WORLD, -99) - process 1
Abort(-99) on node 1 (rank 1 in comm 0): application called MPI_Abort(MPI_COMM_WORLD, -99) - process 1
Abort(-99) on node 1 (rank 1 in comm 0): application called MPI_Abort(MPI_COMM_WORLD, -99) - process 1
Abort(-99) on node 0 (rank 0 in comm 0): application called MPI_Abort(MPI_COMM_WORLD, -99) - process 0
Abort(-99) on node 0 (rank 0 in comm 0): application called MPI_Abort(MPI_COMM_WORLD, -99) - process 0
 Internal error 1 in DMUMPS_LOAD_PROCESS_MESSAGE
 Internal error 1 in DMUMPS_LOAD_RECV_MSGS           1
 Internal error 2 in DMUMPS_LOAD_RECV_MSGS  1275068685          52
 Internal error 1 in DMUMPS_LOAD_PROCESS_MESSAGE
 Internal error 1 in DMUMPS_LOAD_RECV_MSGS           1
 Internal error 1 in DMUMPS_LOAD_PROCESS_MESSAGE
 Internal error 1 in DMUMPS_LOAD_RECV_MSGS           1
 Internal error 2 in DMUMPS_LOAD_RECV_MSGS  1275068685          52
 Internal error 1 in DMUMPS_LOAD_PROCESS_MESSAGE
 Internal error 1 in DMUMPS_LOAD_RECV_MSGS           1
```

environments/locks/conda-petsc-linux-64.lock

@@ -1,6 +1,6 @@
 # Generated by conda-lock.
 # platform: linux-64
-# input_hash: d07a3e2e58642e501aa6458416b059e13ee67443d579035571fd1b49c4c2d551
+# input_hash: c19b310372b3e2c2b66681e74881e8f17bd8cb901c8a3de0b404f16f4d4882a1
 @EXPLICIT
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@@ -10,7 +10,7 @@ https://conda.anaconda.org/conda-forge/noarch/font-ttf-source-code-pro-2.038-h77
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-https://conda.anaconda.org/conda-forge/linux-64/mumps-include-5.7.2-ha770c72_0.conda#5cd4042ea914dd6234a98da967747ed8
+https://conda.anaconda.org/conda-forge/linux-64/mumps-include-5.2.1-ha770c72_11.tar.bz2#765196257c11b54dc52522d2fcafdd69
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@@ -71,7 +71,7 @@ https://conda.anaconda.org/conda-forge/linux-64/aom-3.9.1-hac33072_0.conda#34672
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-https://conda.anaconda.org/conda-forge/linux-64/gmp-6.3.0-h59595ed_1.conda#e358c7c5f6824c272b5034b3816438a7
+https://conda.anaconda.org/conda-forge/linux-64/gmp-6.3.0-hac33072_2.conda#c94a5994ef49749880a8139cf9afcbe1
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@@ -126,7 +126,6 @@ https://conda.anaconda.org/conda-forge/linux-64/libasprintf-devel-0.22.5-h661eb5
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@@ -136,7 +135,7 @@ https://conda.anaconda.org/conda-forge/linux-64/mysql-libs-8.3.0-hca2cd23_4.cond
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-https://conda.anaconda.org/conda-forge/linux-64/scotch-6.1.3-hfeb400c_0.tar.bz2#f1a2c68c2d5c4f530bc8577f44fb4b7e
+https://conda.anaconda.org/conda-forge/linux-64/scotch-6.0.9-hb2e6521_2.tar.bz2#20eb1f0c247d10da95b1da761e7f4c10
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@@ -164,7 +163,6 @@ https://conda.anaconda.org/conda-forge/linux-64/libhwloc-2.10.0-default_h5622ce7
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-https://conda.anaconda.org/conda-forge/linux-64/libptscotch-7.0.4-h2376d02_5.conda#a4386e49cd4abdcba2be073096d6fa56
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@@ -174,6 +172,7 @@ https://conda.anaconda.org/conda-forge/linux-64/openjpeg-2.5.2-h488ebb8_0.conda#
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+https://conda.anaconda.org/conda-forge/linux-64/ptscotch-6.0.9-hb499603_2.tar.bz2#2bb2d071f5cb419e4ce0e1eb7372eb9b
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@@ -195,7 +194,7 @@ https://conda.anaconda.org/conda-forge/noarch/configobj-5.0.8-pyhd8ed1ab_0.conda
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-https://conda.anaconda.org/conda-forge/noarch/importlib-metadata-7.1.0-pyha770c72_0.conda#0896606848b2dc5cebdf111b6543aa04
+https://conda.anaconda.org/conda-forge/noarch/importlib-metadata-7.2.0-pyha770c72_0.conda#e1d9f6dc77209defc283bdf61588e968
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@@ -225,18 +224,18 @@ https://conda.anaconda.org/conda-forge/linux-64/glew-2.1.0-h9c3ff4c_2.tar.bz2#fb
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+https://conda.anaconda.org/conda-forge/linux-64/hypre-2.28.0-mpi_mpich_h716cb5e_0.conda#b41fa6129b3dad329dff734b935130ca
+https://conda.anaconda.org/conda-forge/noarch/importlib_metadata-7.2.0-hd8ed1ab_0.conda#3de0087b2b86443cfae650dea6ecec6f
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