Bump the boto group across 1 directory with 2 updates

Bumps the boto group with 2 updates in the / directory: [boto3](https://github.com/boto/boto3) and [botocore](https://github.com/boto/botocore).


Updates `boto3` from 1.35.40 to 1.35.43
- [Release notes](https://github.com/boto/boto3/releases)
- [Commits](boto/boto3@1.35.40...1.35.43)

Updates `botocore` from 1.35.40 to 1.35.43
- [Commits](boto/botocore@1.35.40...1.35.43)

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

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

src/var/task/requirements.txt

@@ -1,4 +1,4 @@
-boto3==1.35.40
-botocore==1.35.40
+boto3==1.35.43
+botocore==1.35.43
 notifications-python-client==10.0.0
 slack_sdk==3.33.1