Update bitflags to 2.9.3.

The `bitflags!` macro in the latest release has slightly streamlined
codegen. See bitflags/bitflags#458 for details.

Author: nnethercote

Cargo.lock

@@ -266,9 +266,9 @@ dependencies = [
 
 [[package]]
 name = "bitflags"
-version = "2.9.2"
+version = "2.9.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6a65b545ab31d687cff52899d4890855fec459eb6afe0da6417b8a18da87aa29"
+checksum = "34efbcccd345379ca2868b2b2c9d3782e9cc58ba87bc7d79d5b53d9c9ae6f25d"
 
 [[package]]
 name = "blake3"