Add requirements.txt file

Signed-off-by: Aditya Sirish <[email protected]>

Author: adityasaky

.github/workflows/test_yaml.yml

@@ -20,7 +20,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        python -m pip install yamale colorama
+        python -m pip install -r requirements.txt
     - name: Test yaml
       run: |
         _test/test_yaml.py

requirements.txt

@@ -0,0 +1,3 @@
+colorama==0.4.6
+PyYAML==6.0
+yamale==4.0.4