Bump boto3 from 1.36.11 to 1.36.21

Bumps [boto3](https://github.com/boto/boto3) from 1.36.11 to 1.36.21.
- [Release notes](https://github.com/boto/boto3/releases)
- [Commits](boto/boto3@1.36.11...1.36.21)

---
updated-dependencies:
- dependency-name: boto3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

tests/requirements.txt

@@ -1,3 +1,3 @@
 pytest==8.3.4
-boto3==1.36.11
+boto3==1.36.21
 requests==2.32.3