Bump torchtext from 0.17.0+cpu to 0.18.0 in /pytorch/serving

Bumps [torchtext](https://github.com/pytorch/text) from 0.17.0+cpu to 0.18.0.
- [Release notes](https://github.com/pytorch/text/releases)
- [Commits](https://github.com/pytorch/text/commits/v0.18.0)

---
updated-dependencies:
- dependency-name: torchtext
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

pytorch/serving/requirements.txt

@@ -8,7 +8,7 @@ torch-model-archiver
 torch-workflow-archiver
 torchaudio==2.2.0+cpu
 torchserve
-torchtext==0.17.0+cpu
+torchtext==0.18.0
 torchvision==0.17.0+cpu
 -f https://developer.intel.com/ipex-whl-stable-cpu
 intel_extension_for_pytorch==2.2.0+cpu