Fix more int conversion warnings in complex builds

Merge branch 'jczhang/2024-09-05/feature-mat-get-vpb' into 'main'

PC: add new mat ops MATOP_GET_{BLOCK, VBLOCK}_DIAGONAL

See merge request petsc/petsc!7811

Merge branch 'barry/2024-09-02/rebased-fix-conversion-warnings' into 'main'

Compiler finds (and forbid) casts from higher precision integers to lower

See merge request petsc/petsc!7806

Add to CI compilers flags '-Wconversion', '-Wno-sign-conversion', '-Wno-float-conversion', '-Wno-implicit-float-conversion']

Also fix the code to repository to compile cleanly with these flags in th

Add to CI compilers flags '-Wconversion', '-Wno-sign-conversion', '-Wno-float-conversion', '-Wno-implicit-float-conversion']

Also fix the code to repository to compile cleanly with these flags in the CI

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PC: add new mat ops MATOP_GET_{BLOCK, VBLOCK}_DIAGONAL

so that a shell matrix can return its own (variable) point blocks in a matrix for use in PC (V)PBJacobi

Merge branch 'release'

Merge branch 'jolivet/fix-error-message' into 'release'

MatDensePlaceArray: fix error in error message

See merge request petsc/petsc!7727

MatDensePlaceArray: fix error in error message

Merge remote-tracking branch 'origin/release'

Merge branch 'jolivet/fix-matdensegetcolumnvec-disassembled' into 'release'

MatDenseGetColumnVec: error out if there are outstanding VecSetValues()

See merge request petsc/petsc!7713

MatDenseGetColumnVec: error out if there are outstanding VecSetValues()

Merge branch 'jolivet/fix-dense-factorization' into 'main'

Tweaking of when to call MatPropagateSymmetryOptions() or not

See merge request petsc/petsc!7701

MatPropagateSymmetryOptions in MatDuplicate and not always in
MatCreateSubMatrices

Merge branch 'jolivet/fix-missing-field-initializers' into 'main'

Mat: fix -Wmissing-field-initializers

See merge request petsc/petsc!7628

Mat: fix -Wmissing-field-initializers

Merge branch 'barry/2024-05-29/minor-fortran-stub-cleanup' into 'main'

More improvements to Fortran stubs and interfaces

See merge request petsc/petsc!7598

This requires some changes to user FORTRAN code

Pass PETSC_NULL_XXX_ARRAY when passing a NULL as an argument that is expecting an array
Pass PETSC_NULL_ENUM when argument returns an enum instead of

This requires some changes to user FORTRAN code

Pass PETSC_NULL_XXX_ARRAY when passing a NULL as an argument that is expecting an array
Pass PETSC_NULL_ENUM when argument returns an enum instead of PETSC_NULL_INTEGER
Pass arrays (and not scalar values) when the argument is expecting an array; this means replace, for example, the argument v with [v]
Use PetscObjectIsNull(obj) to check if the object is NULL, instead of obj == PETSC_NULL_XXX

The compiler will now automatically prevent you from using the wrong argument type for the first three bullets above
This will also require an update sowing with the new sowing branch this MR is using.

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Merge branch 'knepley/fix-dm-field-facedata' into 'main'

DMField: Quadrature was wrong for affine branch of facedata

See merge request petsc/petsc!7547

MATDENSE: allow NULL

revert 0be0d8bde7cbed9986facbcd3689d3188b7894db

Merge branch 'hsuh/dense-lmvm-squashed' into 'main'

Dense LMVM

See merge request petsc/petsc!7371

MatMult-ColumnRanges support added

Merge branch 'jolivet/add-matmatsolvetranspose_seqaij' into 'main'

MatMatSolveTranspose_SeqAIJ and minor housekeeping

See merge request petsc/petsc!7386

Docs: fix missing or extra dash in right-hand side

Merge branch 'stefanozampini/firedrake-1' into 'main'

Updates for Firedrake: first batch

See merge request petsc/petsc!7358

MATDENSE: support NULL in MatSetValues