Update vendored crates flagged by RustSec to their newest semver-compatible
releases with `cargo update -p <crate>@<version>`:
  crossbeam-epoch 0.9.18 -> 0.9.21 (RUSTSEC-2026-0204)
  webbrowser 1.2.0 -> 1.2.4 (RUSTSEC-2026-0257)
  core-foundation 0.10.1 -> (dropped; only webbrowser 1.2.0 used it)

--- a/Cargo.lock
+++ b/Cargo.lock
@@ -169,7 +169,7 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "40c48f72fd53cd289104fc64099abca73db4166ad86ea0b4341abe65af83dadc"
 dependencies = [
- "windows-sys 0.61.2",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -180,7 +180,7 @@
 dependencies = [
  "anstyle",
  "once_cell_polyfill",
- "windows-sys 0.61.2",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -1319,16 +1319,6 @@
 ]
 
 [[package]]
-name = "core-foundation"
-version = "0.10.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2a6cd9ae233e7f62ba4e9353e81a88df7fc8a5987b8d445b4d90c879bd156f6"
-dependencies = [
- "core-foundation-sys",
- "libc",
-]
-
-[[package]]
 name = "core-foundation-sys"
 version = "0.8.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1341,7 +1331,7 @@
 checksum = "2581bbab3b8ffc6fcbd550bf46c355135d16e9ff2a6ea032ad6b9bf1d7efe4fb"
 dependencies = [
  "bitflags 1.3.2",
- "core-foundation 0.9.4",
+ "core-foundation",
  "core-graphics-types",
  "foreign-types 0.3.2",
  "libc",
@@ -1354,7 +1344,7 @@
 checksum = "c07782be35f9e1140080c6b96f0d44b739e2278479f64e02fdab4e32dfd8b081"
 dependencies = [
  "bitflags 1.3.2",
- "core-foundation 0.9.4",
+ "core-foundation",
  "core-graphics-types",
  "foreign-types 0.5.0",
  "libc",
@@ -1367,7 +1357,7 @@
 checksum = "45390e6114f68f718cc7a830514a96f903cccd70d02a8f6d9f643ac4ba45afaf"
 dependencies = [
  "bitflags 1.3.2",
- "core-foundation 0.9.4",
+ "core-foundation",
  "libc",
 ]
 
@@ -1377,7 +1367,7 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c9d2790b5c08465d49f8dc05c8bcae9fea467855947db39b0f8145c091aaced5"
 dependencies = [
- "core-foundation 0.9.4",
+ "core-foundation",
  "core-graphics 0.23.2",
  "foreign-types 0.5.0",
  "libc",
@@ -1504,9 +1494,9 @@
 
 [[package]]
 name = "crossbeam-epoch"
-version = "0.9.18"
+version = "0.9.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5b82ac4a3c2ca9c3460964f020e1402edd5753411d7737aa39c3714ad1b5420e"
+checksum = "dc74980687109a3b14c72fd458107bf0baa1da1a1a805e178d15501ba9b86d9d"
 dependencies = [
  "crossbeam-utils",
 ]
@@ -1817,7 +1807,7 @@
  "libc",
  "option-ext",
  "redox_users 0.5.2",
- "windows-sys 0.61.2",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
@@ -2201,7 +2191,7 @@
 checksum = "39cab71617ae0d63f51a36d69f866391735b51691dbda63cf6f96d042b63efeb"
 dependencies = [
  "libc",
- "windows-sys 0.61.2",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -2482,7 +2472,7 @@
 dependencies = [
  "bitflags 2.11.0",
  "byteorder",
- "core-foundation 0.9.4",
+ "core-foundation",
  "core-graphics 0.23.2",
  "core-text",
  "dirs 6.0.0",
@@ -3722,7 +3712,7 @@
 dependencies = [
  "hermit-abi 0.5.2",
  "libc",
- "windows-sys 0.61.2",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -5245,7 +5235,7 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7957b9740744892f114936ab4a57b3f487491bbeafaf8083688b16841a4240e5"
 dependencies = [
- "windows-sys 0.61.2",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
@@ -5924,7 +5914,7 @@
 checksum = "7d8fae84b431384b68627d0f9b3b1245fcf9f46f6c0e3dc902e9dce64edd1967"
 dependencies = [
  "libc",
- "windows-sys 0.61.2",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -7218,7 +7208,7 @@
  "errno",
  "libc",
  "linux-raw-sys 0.12.1",
- "windows-sys 0.61.2",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -7728,7 +7718,7 @@
 checksum = "3a766e1110788c36f4fa1c2b71b387a7815aa65f88ce0229841826633d93723e"
 dependencies = [
  "libc",
- "windows-sys 0.61.2",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -8011,7 +8001,7 @@
  "getrandom 0.4.2",
  "once_cell",
  "rustix 1.1.4",
- "windows-sys 0.61.2",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -8554,7 +8544,7 @@
 dependencies = [
  "memoffset",
  "tempfile",
- "windows-sys 0.61.2",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -9022,15 +9012,15 @@
 
 [[package]]
 name = "webbrowser"
-version = "1.2.0"
+version = "1.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fe985f41e291eecef5e5c0770a18d28390addb03331c043964d9e916453d6f16"
+checksum = "62c35be770821a214dbc362fc26908c853e776c0004294d0b10b8a6bad582f94"
 dependencies = [
- "core-foundation 0.10.1",
  "jni",
  "log",
  "ndk-context",
  "objc2 0.6.4",
+ "objc2-app-kit 0.3.2",
  "objc2-foundation 0.3.2",
  "url",
  "web-sys",
@@ -9260,7 +9250,7 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c2a7b1c03c876122aa43f3020e6c3c3ee5c05081c9a00739faf7503aeba10d22"
 dependencies = [
- "windows-sys 0.61.2",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -9688,7 +9678,7 @@
  "calloop",
  "cfg_aliases",
  "concurrent-queue",
- "core-foundation 0.9.4",
+ "core-foundation",
  "core-graphics 0.23.2",
  "cursor-icon",
  "dpi",
@@ -9760,7 +9750,7 @@
 checksum = "7d6f32a0ff4a9f6f01231eb2059cc85479330739333e0e58cadf03b6af2cca10"
 dependencies = [
  "cfg-if 1.0.4",
- "windows-sys 0.61.2",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]