Update dependency libboost-mpi to 1.91.*

[renovate]

This PR contains the following updates:

Package	Update	Change
libboost-mpi	minor	1.88.* → 1.91.*

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[renovate]

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: pixi.lock

ExecError: Command failed: pixi lock --no-progress --color=never --quiet
Error:   × failed to solve requirements of environment 'default' for platform 'linux-
  │ 64'
  ├─▶   × failed to solve the environment
  │   
  ╰─▶ Cannot solve the request because of: libboost-mpi 1.91.* cannot be
      installed because there are no viable options:
      ├─ libboost-mpi 1.91.0 | 1.91.0 would require
      │  └─ mpich >=5.0,<6.0a0, for which no candidates were found.
      └─ libboost-mpi 1.91.0 | 1.91.0 would require
         └─ impi_rt >=2021.17.2,<2021.17.3.0a0, which cannot be installed
      because there are no viable options:
            └─ impi_rt 2021.17.2 | 2021.17.2 | 2021.17.2 would require
               └─ mpi ==1.0 impi, for which no candidates were found.
      The following packages are incompatible
      ├─ mpich >=4.3.2,<5 cannot be installed because there are no viable
      options:
      │  └─ mpich 4.3.2 | 4.3.2 | 4.3.2 | 4.3.2 | 4.3.2 | 4.3.2 | 4.3.2 would
      require
      │     └─ mpi 1.0.* mpich, which cannot be installed because there are no
      viable options:
      │        ├─ mpi 1.0.1, which conflicts with the versions reported above.
      │        └─ mpi 1.0.1, which conflicts with the versions reported above.
      └─ libboost-mpi 1.91.* cannot be installed because there are no viable
      options:
         └─ libboost-mpi 1.91.0 | 1.91.0 would require
            └─ openmpi >=5.0.10,<6.0a0, which cannot be installed because
      there are no viable options:
               └─ openmpi 5.0.10 | 5.0.10 would require
                  └─ mpi 1.0.* openmpi, which cannot be installed because
      there are no viable options:
                     └─ mpi 1.0.1, which conflicts with the versions reported
      above.