Renv package install problems on networked drive

When I try to install some packages in renv-enabled projects on the network drive, I get this error message. Removing the package doesn't do anything. It also doesn't change anything if I use `renv::install()` vs. `install.packages()`.

```
> renv::install("rlang")
The following package(s) are missing their DESCRIPTION files:

rlang [Z:/Kaija/roostClassification/renv/library/R-4.2/x86_64-w64-mingw32/rlang]

These may be left over from a prior, failed installation attempt.
Consider removing or reinstalling these packages.

Installing rlang [1.0.6] ...
OK [copied cache]
Error: target file 'Z:/Kaija/roostClassification/renv/library/R-4.2/x86_64-w64-mingw32/rlang' already exists
> renv::remove("rlang")
* Removing package(s) from project library ...
Removing package 'rlang' ... Done!
> renv::install("rlang")
The following package(s) are missing their DESCRIPTION files:

rlang [Z:/Kaija/roostClassification/renv/library/R-4.2/x86_64-w64-mingw32/rlang]

These may be left over from a prior, failed installation attempt.
Consider removing or reinstalling these packages.

Installing rlang [1.0.6] ...
OK [copied cache]
Error: target file 'Z:/Kaija/roostClassification/renv/library/R-4.2/x86_64-w64-mingw32/rlang' already exists
```

Reproduce the failure with renv::install("rlang"), renv::remove("rlang"), and install.packages() using the network-drive path shown in the report. Inspect how the project library handles the existing rlang directory and missing DESCRIPTION file. Done means the cause is identified and package installation no longer fails with the target-file error.

Written by the indexing model from the issue text.