v0.22.1

Changelog

• dd5af1a: docs(research): measure the 0.22.0 upgrade and the move to the text history (@juev)
• e12a258: docs(research): move the Hermes base to the text history and measure it (@juev)
• 3d76092: perf(store): write the text stamps only when they change (@juev)
• 70163c1: docs(research): where an open of a text history spent its time (@juev)
• d00a47a: chore(release): prepare memcue 0.22.1 (@juev)