build: bump gptqmodel from 4.0.0.dev0+cu126torch2.7 to 5.7.0

Bumps [gptqmodel](https://github.com/ModelCloud/GPTQModel) from 4.0.0.dev0+cu126torch2.7 to 5.7.0.
- [Release notes](https://github.com/ModelCloud/GPTQModel/releases)
- [Commits](https://github.com/ModelCloud/GPTQModel/commits/v5.7.0)

---
updated-dependencies:
- dependency-name: gptqmodel
  dependency-version: 5.7.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

pyproject.toml

@@ -168,7 +168,7 @@ gptq = [
     "threadpoolctl",
     "device-smi",
     "random-word",
-    "gptqmodel==4.0.0.dev0+cu126torch2.7; sys_platform != 'darwin' or platform_machine != 'arm64'",
+    "gptqmodel==5.7.0; sys_platform != 'darwin' or platform_machine != 'arm64'",
     "gptqmodel; sys_platform == 'darwin' and platform_machine == 'arm64'",
 ]
 awq = [