Build - Add piwheels support for ARMv6 and ARMv7 machines (rPi etc) (#1814)

Dockerfile

@@ -20,6 +20,11 @@ WORKDIR /install
 
 COPY requirements.txt /requirements.txt
 
+# Instructing pip to fetch wheels from piwheels.org" on ARMv6 and ARMv7 machines
+RUN if [ "$(dpkg --print-architecture)" = "armhf" ] || [ "$(dpkg --print-architecture)" = "armel" ]; then \
+      printf "[global]\nextra-index-url=https://www.piwheels.org/simple\n" > /etc/pip.conf; \
+    fi;
+
 RUN pip install --target=/dependencies -r /requirements.txt
 
 # Playwright is an alternative to Selenium