Bump boto3 from 1.38.38 to 1.39.4 in /src

Bumps [boto3](https://github.com/boto/boto3) from 1.38.38 to 1.39.4.
- [Release notes](https://github.com/boto/boto3/releases)
- [Commits](boto/boto3@1.38.38...1.39.4)

---
updated-dependencies:
- dependency-name: boto3
  dependency-version: 1.39.4
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

src/requirements.txt

@@ -1,2 +1,2 @@
-boto3==1.38.38
+boto3==1.39.4
 requests==2.32.4