reverting syntax for torch

Author: AmintorDusko

.github/workflows/tests_linux.yml

@@ -249,7 +249,7 @@ jobs:
 
       - name: Install ML libraries for interfaces
         run: |
-          pip install --upgrade torch~=$TORCH_VERSION -f https://download.pytorch.org/whl/cpu/torch_stable.html
+          pip install --upgrade torch==$TORCH_VERSION -f https://download.pytorch.org/whl/cpu/torch_stable.html
           pip install --upgrade "jax[cpu]"  # This also installs jaxlib
           pip install --upgrade tensorflow~=$TF_VERSION keras~=$TF_VERSION
 
@@ -303,7 +303,7 @@ jobs:
 
       - name: Install ML libraries for interfaces
         run: |
-          pip install --upgrade torch~=$TORCH_VERSION -f https://download.pytorch.org/whl/cpu/torch_stable.html
+          pip install --upgrade torch==$TORCH_VERSION -f https://download.pytorch.org/whl/cpu/torch_stable.html
           pip install --upgrade "jax[cpu]"  # This also installs jaxlib
           pip install --upgrade tensorflow~=$TF_VERSION keras~=$TF_VERSION