build: ensure only two minor versions (remove R 4.2.3 files) (#839)

Fix #835

Originally intended to build only the last two minor versions (which are
known to be tested in CRAN and I believe are often considered supported
R versions), we actually continued to build R4.2 after the R4.4 release.

The build script has been corrected and the R4.2 files will be correctly
deleted and will no longer be built.

Author: eitsupi

bakefiles/4.2.3.docker-bake.json

@@ -1,6 +1,5 @@
 {
   "r_version": [
-    "4.2.3",
     "4.3.3",
     "4.4.0",
     "4.4.1"

build/args/4.2.3.json

@@ -22,7 +22,7 @@ supported_versions <- fs::dir_ls(path = "build/args", regexp = r"((\d+\.){3}json
   ) |>
   dplyr::slice_tail(n = 2, by = c(major, minor)) |>
   dplyr::filter(
-    minor == dplyr::last(minor) | patch >= dplyr::lead(patch)
+    minor == dplyr::last(minor) | dplyr::lead(minor) == dplyr::last(minor) & patch >= dplyr::lead(patch)
   ) |>
   dplyr::pull(r_version) |>
   as.character()