Revise nccl versions and switch to object from s3.

.github/workflows/ubuntu-20.yml

@@ -16,7 +16,7 @@ jobs:
       base-tag: 11.8.0-cudnn8-devel-ubuntu20.04
       cuda-version-minor: "11.8.0"
       cuda-version-major: "11.8"
-      nccl-version: 2.16.2-1
+      nccl-version: 2.16.5-1
       cuda-samples-version: "11.6"
       hpcx-version: "2.14"
       hpcx-nccl-version: "2.16"
@@ -32,7 +32,7 @@ jobs:
       base-tag: 12.0.1-cudnn8-devel-ubuntu20.04
       cuda-version-minor: "12.0.1"
       cuda-version-major: "12.0"
-      nccl-version: 2.18.5-1
+      nccl-version: 2.19.3-1
       cuda-samples-version: "12.0"
       hpcx-version: "2.16"
       hpcx-nccl-version: "2.18"
@@ -64,7 +64,7 @@ jobs:
       base-tag: 12.2.2-cudnn8-devel-ubuntu20.04
       cuda-version-minor: "12.2.2"
       cuda-version-major: "12.2"
-      nccl-version: 2.18.5-1
+      nccl-version: 2.19.3-1
       cuda-samples-version: "12.2"
       hpcx-version: "2.16"
       hpcx-nccl-version: "2.18"

Dockerfile.ubuntu20

@@ -67,7 +67,7 @@ ARG HPCX_MLNX_OFED="MLNX_OFED_LINUX-5"
 RUN cd /tmp && \
     export HPCX_DISTRIBUTION="hpcx-v${HPCX_VERSION}-gcc-${HPCX_MLNX_OFED}-ubuntu20.04-cuda${HPCX_CUDA_VERSION}-gdrcopy2-nccl${HPCX_NCCL_VERSION}-x86_64" \
            HPCX_DIR="/opt/hpcx" && \
-    wget -q -O - http://blobstore.s3.ord1.coreweave.com/drivers/${HPCX_DISTRIBUTION}.tbz | tar xjf - && \
+    wget -q -O - http://blobstore.object.ord1.coreweave.com/drivers/${HPCX_DISTRIBUTION}.tbz | tar xjf - && \
     grep -IrlF "/build-result/${HPCX_DISTRIBUTION}" ${HPCX_DISTRIBUTION} | xargs -rd'\n' sed -i -e "s:/build-result/${HPCX_DISTRIBUTION}:${HPCX_DIR}:g" && \
     mv ${HPCX_DISTRIBUTION} ${HPCX_DIR}