build(deps-dev): bump @azure-tools/openai-typespec (#40120)

Bumps the openapi-typespec group with 1 update in the / directory: @azure-tools/openai-typespec.


Updates `@azure-tools/openai-typespec` from 1.7.3 to 1.8.0

---
updated-dependencies:
- dependency-name: "@azure-tools/openai-typespec"
  dependency-version: 1.8.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: openapi-typespec
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package-lock.json

@@ -1,7 +1,7 @@
 {
   "name": "azure-rest-api-specs",
   "devDependencies": {
-    "@azure-tools/openai-typespec": "1.7.3",
+    "@azure-tools/openai-typespec": "1.8.0",
     "@azure-tools/spec-gen-sdk": "~0.9.1",
     "@azure-tools/specs-shared": "file:.github/shared",
     "@azure-tools/typespec-apiview": "0.7.2",