Unbreak RAFT conda builds (#3519)

Summary:

Fixing the conda conflicts because of `_openmp_mutex` build versions. This change pins that version for RAFT conda package builds.

Differential Revision: D58646659

conda/faiss-gpu-raft/meta.yaml

@@ -50,14 +50,18 @@ outputs:
         - llvm-openmp  # [osx]
         - cmake >=3.24.0
         - make  # [not win]
+        - _openmp_mutex =4.5=2_kmp_llvm  # [x86_64]
+        - mkl =2023  # [x86_64]
         - mkl-devel =2023  # [x86_64]
         - cuda-toolkit {{ cudatoolkit }}
       host:
+        - _openmp_mutex =4.5=2_kmp_llvm  # [x86_64]
         - mkl =2023  # [x86_64]
         - openblas  # [not x86_64]
         - libraft =24.04
         - cuda-version {{ cuda_constraints }}
       run:
+        - _openmp_mutex =4.5=2_kmp_llvm  # [x86_64]
         - mkl =2023  # [x86_64]
         - openblas  # [not x86_64]
         - cuda-cudart {{ cuda_constraints }}
@@ -87,12 +91,16 @@ outputs:
         - swig
         - cmake >=3.24.0
         - make  # [not win]
+        - _openmp_mutex =4.5=2_kmp_llvm  # [x86_64]
+        - mkl =2023  # [x86_64]
         - cuda-toolkit {{ cudatoolkit }}
       host:
+        - _openmp_mutex =4.5=2_kmp_llvm  # [x86_64]
         - python {{ python }}
         - numpy >=1.19,<2
         - {{ pin_subpackage('libfaiss', exact=True) }}
       run:
+        - _openmp_mutex =4.5=2_kmp_llvm  # [x86_64]
         - python {{ python }}
         - numpy >=1.19,<2
         - packaging