chore: use requirements.txt.lock file for dependency management

Author: abhisheksr01

Dockerfile

@@ -2,11 +2,11 @@ FROM python:3.9-buster
 
 WORKDIR /app
 
-COPY ./rates/requirements.txt /app
+COPY ./rates/requirements.txt.lock /app
 
 # Install Gunicorn and any needed packages specified in requirements.txt
 RUN pip install --no-cache-dir gunicorn && \
-    pip install --no-cache-dir -r requirements.txt
+    pip install --no-cache-dir -r requirements.txt.lock
 
 COPY ./rates /app
 # Make port 8000 available to the world outside this container

rates/requirements.txt.lock

@@ -0,0 +1,10 @@
+blinker==1.6.2
+click==8.1.7
+Flask==3.0.0
+importlib-metadata==6.8.0
+itsdangerous==2.1.2
+Jinja2==3.1.2
+MarkupSafe==2.1.3
+psycopg2-binary==2.9.8
+Werkzeug==3.0.0
+zipp==3.17.0