fix: use eics3 instead of deprecated dtn01

FYI, eics3 is preferred. I think dtn01 is only one of the multiple nodes that make up the high-availability and load-balanced set that is serving up eics3.

benchmarks/diffractive_vm/Snakefile

@@ -4,7 +4,7 @@ from snakemake.remote.S3 import RemoteProvider as S3RemoteProvider
 
 
 S3 = S3RemoteProvider(
-    endpoint_url="https://dtn01.sdcc.bnl.gov:9000",
+    endpoint_url="https://eics3.sdcc.bnl.gov:9000",
     access_key_id=os.environ["S3_ACCESS_KEY"],
     secret_access_key=os.environ["S3_SECRET_KEY"],
 )