release: 1.81.0 (#2368)

* feat(api): add container endpoint

* release: 1.81.0

---------

Co-authored-by: stainless-app[bot] <142633134+stainless-app[bot]@users.noreply.github.com>

Author: stainless-app[bot]

.release-please-manifest.json

@@ -1,3 +1,3 @@
 {
-  ".": "1.80.0"
+  ".": "1.81.0"
 }

.stats.yml

@@ -1,4 +1,4 @@
-configured_endpoints: 101
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/openai%2Fopenai-a5651cb97f86d1e2531af6aef8c5230f1ea350560fbae790ca2e481b30a6c217.yml
-openapi_spec_hash: 66a5104fd3bb43383cf919225df7a6fd
-config_hash: bb657c3fed232a56930035de3aaed936
+configured_endpoints: 111
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/openai%2Fopenai-6af14840a810139bf407013167ce1c8fb21b6ef8eb0cc3db58b51af7d52c4b5a.yml
+openapi_spec_hash: 3241bde6b273cfec0035e522bd07985d
+config_hash: 7367b68a4e7db36885c1a886f57b17f6