chore(deps): update dependency boto3 to v1.43.3 (#4508)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

requirements.txt

@@ -4,7 +4,7 @@ aliyun-python-sdk-alimt==3.2.0
 altcha==2.0.0
 argon2-cffi==25.1.0
 borgbackup==1.4.4
-boto3==1.43.2
+boto3==1.43.3
 celery==5.6.3
 certifi==2026.4.22
 # For Argon2 and misaka