Refactor dev dependencies to separate requirements file (#51)

Author: boomanaiden154

.github/workflows/main.yml

@@ -19,9 +19,8 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install -r requirements.txt
+          pip install -r dev-requirements.txt
           pip install -r ./compiler_opt/benchmark/requirements.txt
-          pip install pytest pytype==2022.06.06 pylint==2.14.1
           pylint --version
       - name: Type check
         run: |

dev-requirements.txt

@@ -0,0 +1,4 @@
+-r requirements.txt
+pytype==2022.06.06
+pylint==2.14.1
+pytest==7.1.2

run_tests.sh

@@ -21,10 +21,7 @@ virtualenv "${VENV_PATH}" -p python3 --system-site-packages
 source "${VENV_PATH}"/bin/activate
 
 # Download pre-requisite packages.
-pip3 install -r requirements.txt -q
-
-# Get the test harness package.
-pip3 install pytest
+pip3 install -r dev-requirements.txt -q
 
 PYTHONPATH="${PYTHONPATH}:$(dirname "$0")"