patches needed before Matrix 1.4-2 release

[simonpcouch]

From email:

Dear R Maintainer maintainer,

You are receiving this message because at least one CRAN or
Bioconductor package that you maintain requires revisions due to
deprecations in the forthcoming Matrix version 1.4-2, which you can
install with

> install.packages("Matrix", repos = "http://r-forge.r-project.org/")

Matrix 1.4-2 will formally deprecate 187 coercion methods.  More
precisely, coercions of the form

> as(object, Class)

where

* 'object' inherits from the virtual class Matrix, is a traditional
  matrix, or is a logical or numeric vector

* 'Class' specifies a non-virtual subclass of Matrix, such as
  dgCMatrix, but really any subclass matching the pattern

      ^[dln]([gts][CRT]|di|ge|tr|sy|tp|sp)Matrix$

will continue to work as before but signal a deprecation message or
warning (_message_ in the widely used dg.Matrix and d.CMatrix cases).

[simonpcouch]

Closed in 1f017a5. :)

[github-actions]

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