Update jiff-tzdb to 0.1.9 (#9129)

jiff-tzdb 0.1.9 bundles tzdb 2026e. It is used through
jiff-tzdb-platform on Windows and wasm targets.

Assisted-by: Claude Code:claude-opus-5-5

Cargo.lock

@@ -2126,9 +2126,9 @@ dependencies = [
 
 [[package]]
 name = "jiff-tzdb"
-version = "0.1.8"
+version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "142bd39932ad231f10513df9ab62661fead8719872150b7ad02a2df79f4e141e"
+checksum = "fa8377070c6bae868759445e5a77f66d84f0b72f3a054bfb00e6d038b8282da7"
 
 [[package]]
 name = "jiff-tzdb-platform"