chore(release): 0.3.0

Subcommand dispatch is now help-driven instead of substring-matching
"REVSET", so multi-level subcommands (`tag set`, `bookmark move`, …)
and non-`-r` revset flags (`--to`) work, and pre-supplied revset
flags bypass the picker instead of being double-injected.

Cargo.lock

@@ -99,7 +99,7 @@ dependencies = [
 
 [[package]]
 name = "jjf"
-version = "0.2.0"
+version = "0.3.0"
 dependencies = [
  "anyhow",
  "crossterm",