Remove swig version and always rely on the latest version (facebookresearch#3295)

Summary:
Pull Request resolved: facebookresearch#3295

In the past, we had build failure due to the latest swig version in conda-forge so we had to specify the version of swig. In this diff, we are going to change it to be the latest version always because the issue has gone.

Reviewed By: algoriddle

Differential Revision: D54975271

fbshipit-source-id: 7ca59fb58390edb0cc5ed52f6fd416f633dd7938

Author: junjieqi

.circleci/config.yml

@@ -224,15 +224,15 @@ jobs:
             - run:
                 name: Install env using main channel
                 command: |
-                  conda install -y -q python=3.11 cmake make swig=4.0.2 mkl=2023 mkl-devel=2023 numpy scipy pytest gxx_linux-64 sysroot_linux-64
+                  conda install -y -q python=3.11 cmake make swig mkl=2023 mkl-devel=2023 numpy scipy pytest gxx_linux-64 sysroot_linux-64 -c conda-forge
       - when:
           condition:
             equal: [ "ON", << parameters.raft >> ]
           steps:
             - run:
                 name: Install env using conda-forge channel
                 command: |
-                  conda install -y -q python=3.11 cmake make swig=4.0.2 mkl=2023 mkl-devel=2023 numpy scipy pytest gxx_linux-64 sysroot_linux-64=2.28 libraft cuda-version=11.8 cuda-toolkit -c rapidsai-nightly -c "nvidia/label/cuda-11.8.0" -c conda-forge
+                  conda install -y -q python=3.11 cmake make swig mkl=2023 mkl-devel=2023 numpy scipy pytest gxx_linux-64 sysroot_linux-64=2.28 libraft cuda-version=11.8 cuda-toolkit -c rapidsai-nightly -c "nvidia/label/cuda-11.8.0" -c conda-forge
       - when:
           condition:
             and:

conda/faiss-gpu-raft/meta.yaml

@@ -84,7 +84,7 @@ outputs:
       build:
         - {{ compiler('cxx') }}
         - sysroot_linux-64 =2.17 # [linux64]
-        - swig =4.0.2
+        - swig
         - cmake >=3.23.1
         - make  # [not win]
       host: