Adds libgcc and pytorch::pytorch to environment.yml

environment.yml

-name: openfold_venv
+name: openfold-venv
 channels:
   - conda-forge
   - bioconda
+  - pytorch
 dependencies:
   - python=3.9
+  - libgcc=7.2
   - setuptools=59.5.0
   - pip
   - openmm=7.7
   - pdbfixer
   - cudatoolkit==11.3.*
-  - pytorch=1.12.*
   - pytorch-lightning==1.5.10
   - biopython==1.79
   - numpy==1.21
@@ -27,8 +28,9 @@ dependencies:
   - bioconda::hmmer==3.3.2
   - bioconda::hhsuite==3.3.0
   - bioconda::kalign2==2.04
+  - pytorch::pytorch=1.12.*
   - pip:
       - deepspeed==0.5.10
       - dm-tree==0.1.6
       - git+https://github.com/NVIDIA/dllogger.git
-      - git+https://github.com/Dao-AILab/flash-attention.git@v0.2.1
+      - git+https://github.com/Dao-AILab/flash-attention.git@5b838a8