Update dependencies.yaml to new pip index (#1305)

This PR changes all references to pypi.nvidia.com to pypi.anaconda.org/rapidsai-wheels-nightly.

Authors:
  - Vyas Ramasubramani (https://github.com/vyasr)

Approvers:
  - Mark Harris (https://github.com/harrism)
  - Ray Douglass (https://github.com/raydouglass)

URL: #1305

dependencies.yaml

@@ -365,6 +365,7 @@ dependencies:
         packages:
           # pip recognizes the index as a global option for the requirements.txt file
           - --extra-index-url=https://pypi.nvidia.com
+          - --extra-index-url=https://pypi.anaconda.org/rapidsai-wheels-nightly/simple
     specific:
       - output_types: [requirements, pyproject]
         matrices:
@@ -390,6 +391,7 @@ dependencies:
         packages:
           # pip recognizes the index as a global option for the requirements.txt file
           - --extra-index-url=https://pypi.nvidia.com
+          - --extra-index-url=https://pypi.anaconda.org/rapidsai-wheels-nightly/simple
     specific:
       - output_types: [requirements, pyproject]
         matrices:
@@ -415,6 +417,7 @@ dependencies:
         packages:
           # pip recognizes the index as a global option for the requirements.txt file
           - --extra-index-url=https://pypi.nvidia.com
+          - --extra-index-url=https://pypi.anaconda.org/rapidsai-wheels-nightly/simple
     specific:
       - output_types: [requirements, pyproject]
         matrices:
@@ -440,6 +443,7 @@ dependencies:
         packages:
           # pip recognizes the index as a global option for the requirements.txt file
           - --extra-index-url=https://pypi.nvidia.com
+          - --extra-index-url=https://pypi.anaconda.org/rapidsai-wheels-nightly/simple
     specific:
       - output_types: [requirements, pyproject]
         matrices: