Package fails to build if a native package dependency is not of new enough version

[georgestagg]

This fails even if the Wasm version is up-to-date. We should catch this situation and update the native package.

> rwasm::add_pkg("teal")
✔ Updated metadata database: 2.38 MB in 2 files.
✔ Updating metadata database ... done
Processing 1 package(s).
✔ Scanning dependencies in ./repo/src/contrib/teal_1.0.0.tar.gz ... done

 
 
→ The package (0 B) is cached.
ℹ No downloads are needed
✔ :  [3.7s]  
* installing *source* package ‘teal’ ...
** this is package ‘teal’ version ‘1.0.0’
** package ‘teal’ successfully unpacked and MD5 sums checked
** using non-staged installation
** R
** inst
** preparing package for lazy loading
Error: package ‘teal.slice’ 0.6.0 was found, but >= 0.7.0 is required by ‘teal’
Execution halted
ERROR: lazy loading failed for package ‘teal’
* removing ‘/private/var/folders/kw/9gcs_ccn62q94s3mfny4t8tw0000gp/T/Rtmp0tfLeS/fileb069c663d2/teal’
Warning message:
In wasm_build(pkg, tarball_path, contrib_bin, compress) :
  Building wasm binary for package 'teal' failed.
> rwasm::add_pkg("teal.slice")
Processing 1 package(s).