Try binary installation of build-only deps for source packages

[Enchufa2]

Closes #81

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[Enchufa2]

Now:

$ docker run --rm -it rocker/r2u:jammy
$ installGithub.r cran4linux/bspm@fix/81
$ Rscript <(wget -O- https://raw.githubusercontent.com/eddelbuettel/demo-tldbsm/master/useRUniverse.R | sed 's/\"RcppInt64\", //')
... <snip> ...
Setting up r-cran-rcppint64 (0.0.4-1.ca2204.1) ...
... <snip> ...
Setting up r-cran-purrr (1.0.2-1.ca2204.1) ...
Setting up r-cran-arrow (15.0.1-1.ca2204.1) ...
Installing packages into ‘/usr/local/lib/R/site-library’
(as ‘lib’ is unspecified)
trying URL 'https://tldbsm.r-universe.dev/bin/linux/jammy/4.3/src/contrib/tiledb_0.25.0.106.tar.gz'
Content type 'application/x-gzip' length 29753910 bytes (28.4 MB)
==================================================
downloaded 28.4 MB

trying URL 'https://tldbsm.r-universe.dev/bin/linux/jammy/4.3/src/contrib/tiledbsoma_1.9.4.tar.gz'
Content type 'application/x-gzip' length 44328205 bytes (42.3 MB)
==================================================
downloaded 42.3 MB

* installing *binary* package ‘tiledb’ ...
* DONE (tiledb)
* installing *binary* package ‘tiledbsoma’ ...
* DONE (tiledbsoma)

The downloaded source packages are in
        ‘/tmp/RtmpkFHxH6/downloaded_packages’
tiledbsoma:    1.9.4
tiledb-r:      0.25.0.106
tiledb core:   2.21.1
libtiledbsoma: 2.21.1
R:             R version 4.3.3 (2024-02-29)
OS:            Ubuntu 22.04.1 LTS