v2.3.0

HierarchicalEOM v2.3.0

Diff since v2.2.4

Merged pull requests:

• Re-structure the code fore entire package (#113) (@ytdHuang)
• Optimize precompilation process during runtests (#115) (@ytdHuang)
• Add spell check CI (#116) (@ytdHuang)
• Fix journal article name (#117) (@ytdHuang)
• Bump crate-ci/typos from 1.27.0 to 1.27.3 (#118) (@dependabot[bot])
• Bump codecov/codecov-action from 4 to 5 (#119) (@dependabot[bot])
• Make HEOMLS data be SciMLOperator (#121) (@ytdHuang)