chore(deps): bump httpx2 from 2.5.0 to 2.12.0 in /libs/cli

Bumps [httpx2](https://github.com/pydantic/httpx2) from 2.5.0 to 2.12.0.
- [Release notes](https://github.com/pydantic/httpx2/releases)
- [Changelog](https://github.com/pydantic/httpx2/blob/main/src/httpx2/CHANGELOG.md)
- [Commits](https://github.com/pydantic/httpx2/compare/v2.5.0...v2.12.0)

---
updated-dependencies:
- dependency-name: httpx2
  dependency-version: 2.12.0
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

libs/cli/uv.lock

@@ -3,7 +3,8 @@ revision = 3
 requires-python = ">=3.10"
 resolution-markers = [
     "python_full_version >= '3.15'",
-    "python_full_version >= '3.11' and python_full_version < '3.15'",
+    "python_full_version >= '3.12' and python_full_version < '3.15' and sys_platform == 'emscripten'",
+    "(python_full_version >= '3.11' and python_full_version < '3.15' and sys_platform != 'emscripten') or (python_full_version == '3.11.*' and sys_platform == 'emscripten')",
     "python_full_version < '3.11'",
 ]
 
@@ -736,15 +737,15 @@ wheels = [
 
 [[package]]
 name = "httpcore2"
-version = "2.5.0"
+version = "2.12.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "h11" },
     { name = "truststore" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/47/06/5c12df521b5322fb1114a83d46911b2fbcb8855ddb3a635f11c01a214af5/httpcore2-2.5.0.tar.gz", hash = "sha256:88aa170137c17328d5ac44234f9fd10706466d5fb347f3edac4d39b91137b09d", size = 64808, upload-time = "2026-06-25T14:16:56.472Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/be/ad/f4f0e57345f1870f3e8cb624e058d7eca6e5a27d33bcc3311d9b618734cd/httpcore2-2.12.0.tar.gz", hash = "sha256:9293522bba0aa7c4c8e9e3f040c16575bd8868e155a77fa30c7a9085a5eae648", size = 67548, upload-time = "2026-08-18T13:22:08.211Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/c9/a1/7564199d1a8728fe737b0a72e5b3f8d92dfe085a74ddf7cdd83bce5f206d/httpcore2-2.5.0-py3-none-any.whl", hash = "sha256:5ce35188de461d31e8d000bfb8ef8bf22c6c16587a211e5571deaa5e9bdf842a", size = 80330, upload-time = "2026-06-25T14:16:53.634Z" },
+    { url = "https://files.pythonhosted.org/packages/d2/74/d370e55600d9bcfa0d9794b0166126d49291a3d2b20c268fc98c453a4948/httpcore2-2.12.0-py3-none-any.whl", hash = "sha256:7e04258ce01013d7d615e5b910a3b27fac937d7a95038227e79652b4ba3b4ceb", size = 83074, upload-time = "2026-08-18T13:22:05.854Z" },
 ]
 
 [[package]]
@@ -802,18 +803,28 @@ wheels = [
 
 [[package]]
 name = "httpx2"
-version = "2.5.0"
+version = "2.12.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
-    { name = "anyio" },
-    { name = "httpcore2" },
+    { name = "anyio", marker = "sys_platform != 'emscripten'" },
+    { name = "httpcore2", marker = "sys_platform != 'emscripten'" },
+    { name = "httpx2-jsfetch", marker = "python_full_version >= '3.12' and sys_platform == 'emscripten'" },
     { name = "idna" },
-    { name = "truststore" },
+    { name = "truststore", marker = "sys_platform != 'emscripten'" },
     { name = "typing-extensions", marker = "python_full_version < '3.13'" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/d0/e2/b5dedc0cf35aa65de5f541ccd30d2bc1fd7f1d43c9ab09f8ed9a7342317b/httpx2-2.5.0.tar.gz", hash = "sha256:e2df9cb4611021527ff8a675b1c320b610a2ec397acc8d6fe6e91df2d9b33c29", size = 83121, upload-time = "2026-06-25T14:16:57.491Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/7f/f8/579a8b51e42e38ee32647df9f08aa25643ae788e275cc625b199829c4671/httpx2-2.12.0.tar.gz", hash = "sha256:7631fe9887a8a2275f4a2540e053aa670fcc50742864a9ae7c66e609fdcf12cf", size = 100040, upload-time = "2026-08-18T13:22:09.086Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/31/22/859d8252dad9bc9adee34b52e62cde621ece07b042ccb2ab4da1be46695f/httpx2-2.5.0-py3-none-any.whl", hash = "sha256:3d2d4d9cf4b61f1a1f46a95947cfdb47e80cb56a2f91c6256ac8f58e4891df41", size = 76652, upload-time = "2026-06-25T14:16:55.23Z" },
+    { url = "https://files.pythonhosted.org/packages/c8/95/411ba65569158e862368917aaf56597f3e5fa3b91b0502919638465a08f3/httpx2-2.12.0-py3-none-any.whl", hash = "sha256:cc8b6eecb8661c146b8f89a60e97456ee086e91a784ed31ac450c3a9e613dd36", size = 95427, upload-time = "2026-08-18T13:22:06.834Z" },
+]
+
+[[package]]
+name = "httpx2-jsfetch"
+version = "1.0"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/cd/c4/0e5636363151a2a1795e0a77617168b9ca438e1748ec05fc9b5687f93d64/httpx2_jsfetch-1.0.tar.gz", hash = "sha256:70a0e3eabfef7cce5ad9c629f7d01ca05e418f586646f4ddf14782e4c1454c60", size = 6872, upload-time = "2026-08-07T00:13:07.492Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/9b/43/832f631d32e4f1211caa2ba368317739fe71f0b8530e4c9d15dc454bac2a/httpx2_jsfetch-1.0-py3-none-any.whl", hash = "sha256:cb916b707601e69a07721aabc8f3f6659be3a6893bc1ff5c6f9e02241df2da32", size = 6382, upload-time = "2026-08-07T00:13:06.567Z" },
 ]
 
 [[package]]