Bump boto3 from 1.38.46 to 1.39.3

Bumps [boto3](https://github.com/boto/boto3) from 1.38.46 to 1.39.3.
- [Release notes](https://github.com/boto/boto3/releases)
- [Commits](boto/boto3@1.38.46...1.39.3)

---
updated-dependencies:
- dependency-name: boto3
  dependency-version: 1.39.3
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

requirements.txt

@@ -4,7 +4,7 @@ ansible-core==2.18.2
 attrs==25.3.0
 black==25.1.0
 blessed==1.21.0
-boto3==1.38.46
+boto3==1.39.3
 botocore==1.39.1
 certifi==2025.6.15
 cffi==1.17.1