v0.12.6

What's Changed

• fix: switch from rust-cache-action to sccache-action by @starpit in #637
• fix: improve llmd workflow image version logic by @starpit in #634
• update cli-build workflow to use sccache by @starpit in #640
• fix: remove some unused dependencies by @starpit in #641
• fix: remove max_parallel:1 from cli image build workflow by @starpit in #642
• chore: bump to 0.12.6 by @starpit in #635

Full Changelog: v0.12.5...v0.12.6