QA: normalize versions to [lts, 1] (drop pre)

Set the [QA] group versions to the canonical set ["lts", "1"] so Aqua/JET
run on LTS (1.10) and latest stable only (dropping "pre"). Core and NoPre
groups are unchanged.

Co-Authored-By: Chris Rackauckas <accounts@chrisrackauckas.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: ChrisRackauckas

test/test_groups.toml

@@ -3,7 +3,7 @@ versions = ["1", "lts", "pre"]
 os = ["ubuntu-latest", "macos-latest", "windows-latest"]
 
 [QA]
-versions = ["1", "lts", "pre"]
+versions = ["lts", "1"]
 
 [NoPre]
 versions = ["1", "lts", "pre"]