add nimib to important packages (#20697)

r

Co-authored-by: Clay Sweetser <Varriount@users.noreply.github.com>

testament/important_packages.nim

@@ -105,6 +105,7 @@ pkg "nimfp", "nim c -o:nfp -r src/fp.nim"
 pkg "nimgame2", "nim c --mm:refc nimgame2/nimgame.nim"
   # XXX Doesn't work with deprecated 'randomize', will create a PR.
 pkg "nimgen", "nim c -o:nimgenn -r src/nimgen/runcfg.nim"
+pkg "nimib"
 pkg "nimlsp"
 pkg "nimly", "nim c -r tests/test_readme_example.nim"
 pkg "nimongo", "nimble test_ci", allowFailure = true