Bump aiohttp[speedups] from 3.12.9 to 3.12.12

---
updated-dependencies:
- dependency-name: aiohttp[speedups]
  dependency-version: 3.12.12
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

pyproject.toml

@@ -14,7 +14,7 @@ dependencies = [
     "opensearch-py[async] == 2.8.0",
     "uvicorn[standard] == 0.34.3",
     "httpx[http2] == 0.28.1",
-    "aiohttp[speedups] == 3.12.9",
+    "aiohttp[speedups] == 3.12.12",
     "boto3 ~= 1.37",
     "fastapi == 0.115.12",
     "python-multipart == 0.0.20",