Update Nginx from 1.14.2

[dydx]

Re: https://app.shortcut.com/replicated/story/109666/upgrade-nginx-eol-obsolete-software-nginx-1-14-x-detected

• Updates from python:2 to python:3 to enable installation of more recent Nginx (1.22.1)
• Ensures python3 and pip3 are available for make commands
• Ensures python3 and pip3 are used in make commands
• Updates packages in requirements.txt
• Removes no-longer-present version in setup_remote_docker

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Testing

Tested the Docker build by adding portions of build_staging_docker_image Job to the pull-request Workflow

Locally, I am now able to run make build and obtain the nginx version:

docker run --rm -it docker.io/library/install-scripts:latest bash -c "nginx -v"     (⎈|eks-production.tail1ed40.ts.net:default)
nginx version: nginx/1.22.1

[dydx]

This idea was a tiger pit when getting into Okteto