check_if_installed() now automatically determines the correct minimum version

[rempsyc]

check_if_installed() now automatically checks the package DESCRIPTION file to determine the correct minimum version required.

---

Closes #793 and closes #794

[rempsyc]

I guess it's difficult to add tests for this function given that the required packages may or may not be available due to the R CMD check hard workflow (even snapshots will fail).

[bwiernik]

Looks good to me. Made a small comment about naming, otherwise I'm fine to merge once checks pass

[codecov]

Codecov Report

Merging #795 (2ed70ec) into main (a95325c) will increase coverage by 0.05%.
Report is 1 commits behind head on main.
The diff coverage is 100.00%.

❗ Current head 2ed70ec differs from pull request most recent head efcec15. Consider uploading reports for the commit efcec15 to get more accurate results

@@            Coverage Diff             @@
##             main     #795      +/-   ##
==========================================
+ Coverage   53.86%   53.91%   +0.05%     
==========================================
  Files         124      124              
  Lines       15226    15244      +18     
==========================================
+ Hits         8201     8219      +18     
  Misses       7025     7025              

Files Changed	Coverage Δ
R/model_info.R	55.46% <ø> (ø)
R/check_if_installed.R	54.92% <100.00%> (+15.30%)	⬆️
R/get_predicted_args.R	74.53% <100.00%> (ø)
R/get_predicted_bayesian.R	97.67% <100.00%> (ø)

[rempsyc]

Remaining failing checks are unrelated to this PR.

[bwiernik]

Thanks!