fix(aws): do not load creds from env vars

Signed-off-by: Miguel Martinez <miguel@chainloop.dev>

Author: migmartri

go.mod

@@ -9,7 +9,7 @@ require (
 	entgo.io/ent v0.14.4
 	github.com/adrg/xdg v0.4.0
 	github.com/aws/aws-sdk-go-v2 v1.39.4
-	github.com/aws/aws-sdk-go-v2/config v1.31.15
+	github.com/aws/aws-sdk-go-v2/config v1.31.15 // indirect
 	github.com/aws/aws-sdk-go-v2/credentials v1.18.19
 	github.com/aws/aws-sdk-go-v2/service/secretsmanager v1.28.6
 	github.com/aws/aws-sdk-go-v2/service/sso v1.29.8