Update Dockerfile

Dockerfile

@@ -25,7 +25,7 @@ run bash ~/miniconda/install.sh -b -u -p ~/miniconda
 run ~/miniconda/bin/conda env create -f ./env.yml
 run ~/miniconda/bin/conda install pip
 run ~/miniconda/bin/conda init
-run ~/miniconda/bin/conda activate env
+run ~/miniconda/bin/activate env
 run python3 -m venv env
 run source env/bin/activate
 run pip install --upgrade --no-cache-dir -r requirements2.txt