Update s3-html use latest docker image, simplify init code (#4884)

Author: atalman

.github/workflows/update-s3-html.yml

@@ -19,7 +19,7 @@ jobs:
         prefix: ["whl", "whl/test", "whl/nightly", "whl/lts/1.8"]
       fail-fast: False
     container:
-      image: continuumio/miniconda3:4.12.0
+      image: continuumio/miniconda3:23.10.0-1
     steps:
       - name: configure aws credentials
         id: aws_creds
@@ -37,9 +37,8 @@ jobs:
         run: |
             set -ex
 
-            # Create Conda Environment
-            conda create --quiet -y --prefix run_env python="3.8"
-            conda activate ./run_env
+            # Output info on default conda env
+            conda info
 
             # Install requirements
             pip install -r s3_management/requirements.txt