Last ned Scala CLI 1.2.1

Fixes
- Fix handling for -Xlint:help by @Gedochao in #2781
- Fix --semanticdb-targetroot & --semanticdb-sourceroot for scripts by @Gedochao in #2784
- Adjust actionable diagnostics for scripts by @rochala in #2815
- Fix publishing of runner & test-runner artifacts by @Gedochao in #2819
- bugfix: Fix Bloop import by @tgodzik in #2825
Enhancements
- Ensure external help options are mentioned in short help where available by @Gedochao in #2808
Internal changes
- Run integration tests for the latest Scala 3 Next RC by @Gedochao in #2824
Documentation changes
- Add installation guide for FreeBSD by @spacebanana420 in #2793
- Back port of documentation changes to main by @github-actions in #2797
Updates and maintenance
- Update scala-cli.sh launcher for 1.2.0 by @github-actions in #2783
- Update core_2.13 to 3.9.4 by @scala-steward in #2787
- Update ammonite to 3.0.0-M1-8-35694880 by @scala-steward in #2786
- Update trees_2.13 to 4.9.2 by @scala-steward in #2795
- Update guava to 33.1.0-jre by @scala-steward in #2801
- Bump follow-redirects from 1.15.4 to 1.15.6 in /website by @dependabot in #2803
- Add -unchecked to the list of options that don't require -O by @joan38 in #2800
- Update bloop-rifle_2.13 to 1.5.12-sc-1 by @scala-steward in #2806
- Update sttp.client core to 3.9.5 by @scala-steward in #2810
- Update asm to 9.7 by @scala-steward in #2813
- Update Scala.js to 1.16.0 by @scala-steward in #2807
- Bump express from 4.18.2 to 4.19.2 in /website by @dependabot in #2816
- Update Bloop to 1.5.16-sc-1 by @Gedochao in #2818
- Bump Scala Next to 3.4.1 by @Gedochao in #2822
- Bump Typelevel Toolkit to 0.1.23 by @Gedochao in #2823
New Contributors
- @joan38 made their first contribution in #2800
- @rochala made their first contribution in #2815