Update aws-sdk-go-v2 dependency

[qboileau]

Module	Before (main)	Now
aws-sdk-go-v2	1.39.6	1.43.3
aws/protocol/eventstream	1.7.3	1.7.16
config	1.31.17	1.32.34
credentials	1.18.21	1.19.33
feature/ec2/imds	1.18.13	1.18.34
feature/s3/manager	1.20.3	1.22.39
internal/configsources	1.4.13	1.4.34
internal/endpoints/v2	2.7.13	2.7.34
internal/v4a	1.4.13	1.4.35
service/internal/accept-encoding	1.13.3	1.13.15
service/internal/checksum	1.9.4	1.9.27
service/internal/presigned-url	1.13.13	1.13.34
service/internal/s3shared	1.19.13	1.19.35
service/s3	1.89.2	1.106.4
service/sso	1.30.1	1.33.3
service/ssooidc	1.35.5	1.38.3
service/sts	1.39.1	1.45.3
smithy-go	1.23.2	1.27.6
service/signin	—	1.5.3 (new indirect added by go mod tidy)