windows-11-arm: R installation reports wrong arch

[yutannihilation]

Type of issue

• Error when running a workflow.
• Request for additional tools or software for an existing image.
• Request for a new image, Linux or Windows.
• Other

Describe the issue

R has a variable R.version which containing various information about the system and the toolchain of the R installation. I expect the platform is aarch64, but it says x86_64.

To Reproduce

Run Rscript -e 'print(R.version)'.

Rscript -e 'print(R.version)'
               _                                
platform       x86_64-w64-mingw32               
arch           x86_64                           
os             mingw32                          
crt            ucrt                             
system         x86_64, mingw32                  
status                                          
major          4                                
minor          4.2                              
year           2024                             
month          10                               
day            31                               
svn rev        87279                            
language       R                                
version.string R version 4.4.2 (2024-10-31 ucrt)
nickname       Pile of Leaves        

https://github.com/yutannihilation/hellorust/actions/runs/14471518046/job/40586433083#step:2:1

Expected behavior
aarch64

Screenshots
n/a

Desktop (please complete the following information):

Additional context