Add pip upgrade step, add pip retry/timeout to build + package (#559)

Author: korlaxxalrok

jenkins/build-and-package.sh

@@ -18,8 +18,9 @@ cd "${WORKSPACE}/${local_indicator}" || exit
 # Set up venv
 python -m venv env
 source env/bin/activate
-pip install ../_delphi_utils_python/.
-pip install .
+pip install --upgrade pip --retries 10 --timeout 20
+pip install ../_delphi_utils_python/. --retries 10 --timeout 20
+pip install . --retries 10 --timeout 20
 
 #
 # Package