10.1.0 - Improve Time, Frames and SSA

What's Changed

• ci(cd): restrict publishing to tags, and align the documented CLI version by @sylvain-guillet in #330
• chore(tools): bring the SOFA reference harnesses in from the Pro repository by @sylvain-guillet in #331
• docs: stop describing RK7(8) as a Pro edition feature by @sylvain-guillet in #332
• chore: finish the merge cleanup (phase 1, lot A) by @sylvain-guillet in #333
• fix(maneuver): deprecate LowThrustManeuver and document the thrust window (phase 1, lot E) by @sylvain-guillet in #336
• fix(versioning): align the CLI version and complete the release history (phase 1, lot H) by @sylvain-guillet in #337
• fix(time): count leap seconds from their first instant, and keep sub-millisecond Julian dates by @sylvain-guillet in #338
• fix(frames): IAU frame chain fixes and documentation (phase 1, lot C) by @sylvain-guillet in #341
• fix(ssa): hold the fallback covariance in RTN, flag it by age, guard CDM export (phase 1, lot D) by @sylvain-guillet in #343
• feat(conformance): record the tested framework commit and accept tolerance justifications (phase 1, lot G) by @sylvain-guillet in #344
• test(propagation): measure the conformance cases like the runner and publish the results (phase 1, lot B) by @sylvain-guillet in #347
• chore(release): prepare 10.1.0 by @sylvain-guillet in #348

Full Changelog: 10.0.0...10.1.0