- leptos 0.8.2 -> 0.8.20, meta/router/actix to latest 0.8.x
- reactive_stores 0.2.5 -> 0.4.3 (matches reactive_graph used by leptos 0.8.20)
- wasm-bindgen =0.2.101 -> =0.2.126, js-sys =0.3.78 -> =0.3.103
Fixes the build with the current nightly (tachys 0.2.18 no longer
needs the re-gated min_adt_const_params feature).
