feat: add CI test pipeline

[walking-octopus]

Good evening.

This PR is in response to #33. This is my attempt at a CI pipeline. You can configure PRs to be denied merging based on test status in the repo settings.

I tried to test it with act, but it seems to be acting weirdly, being unable to download Racket despite a seemingly correct URL and a widely used action...

I look forward to any feedback/help. Thanks.

INFO[0000] Using docker host 'unix:///run/podman/podman.sock', and daemon socket 'unix:///run/podman/podman.sock'
[Test/test] 🚀  Start image=node:16-buster-slim
[Test/test]   🐳  docker pull image=node:16-buster-slim platform= username= forcePull=true
[Test/test]   🐳  docker create image=node:16-buster-slim platform= entrypoint=["tail" "-f" "/dev/null"] cmd=[] network="host"
[Test/test]   🐳  docker run image=node:16-buster-slim platform= entrypoint=["tail" "-f" "/dev/null"] cmd=[] network="host"
[Test/test]   🐳  docker exec cmd=[node --no-warnings -e console.log(process.execPath)] user= workdir=
[Test/test]   ☁  git clone 'https://github.com/actions/cache' # ref=v2
[Test/test]   ☁  git clone 'https://github.com/Bogdanp/setup-racket' # ref=v1.12
[Test/test] ⭐ Run Main actions/checkout@v3
[Test/test]   🐳  docker cp src=/home/stas/racket-algorithms/. dst=/home/stas/racket-algorithms
[Test/test]   ✅  Success - Main actions/checkout@v3
[Test/test]   🐳  docker exec cmd=[/usr/local/bin/node /var/run/act/workflow/hashfiles/index.js] user= workdir=
[Test/test] ⭐ Run Main Cache installed packages
[Test/test]   🐳  docker cp src=/root/.cache/act/actions-cache@v2/ dst=/var/run/act/actions/actions-cache@v2/
[Test/test]   🐳  docker exec cmd=[/usr/local/bin/node /var/run/act/actions/actions-cache@v2/dist/restore/index.js] user= workdir=
[Test/test]   💬  ::debug::Resolved Keys:
[Test/test]   💬  ::debug::["Linux-raco-c181baacc8ce975b8f4a02a8d363a96d0681a5f1da12df3ade1c0dcea506f7c0"]
[Test/test]   💬  ::debug::Checking zstd --version
[Test/test]   💬  ::debug::Unable to locate executable file: zstd. Please verify either the file path exists or the file can be found within a directory specified by the PATH environment variable. Also check the file mode to verify the file is executable.
[Test/test]   💬  ::debug::
[Test/test]   💬  ::debug::Resource Url: http://192.168.0.124:40297/_apis/artifactcache/cache?keys=Linux-raco-c181baacc8ce975b8f4a02a8d363a96d0681a5f1da12df3ade1c0dcea506f7c0&version=25db26c49c6edced6efb9ca9aa521cfe65fd100112ba5d8486ac0acd9d506364
| Cache not found for input keys: Linux-raco-c181baacc8ce975b8f4a02a8d363a96d0681a5f1da12df3ade1c0dcea506f7c0
[Test/test]   ✅  Success - Main Cache installed packages
[Test/test] ⭐ Run Main Set up Racket
[Test/test]   🐳  docker cp src=/root/.cache/act/Bogdanp-setup-racket@v1.12/ dst=/var/run/act/actions/Bogdanp-setup-racket@v1.12/
[Test/test]   🐳  docker exec cmd=[/usr/local/bin/node /var/run/act/actions/Bogdanp-setup-racket@v1.12/lib/setup-racket.js] user= workdir=
[Test/test]   ❓  ::group::Looking up stable version...
[Test/test]   ❓  ::endgroup::
[Test/test]   ❓  ::group::Installing Racket 8.16 (CS, full, x64)...
| installerURL = https://download.racket-lang.org/installers/8.16/racket-8.16-x86_64-linux-cs.sh
[Test/test]   💬  ::debug::Downloading https://download.racket-lang.org/installers/8.16/racket-8.16-x86_64-linux-cs.sh
[Test/test]   💬  ::debug::Destination /tmp/2f7c81a8-29af-43d5-a080-197d6e1f5a5d
| connect ETIMEDOUT 129.10.116.85:443
| Waiting 13 seconds before trying again
| connect ETIMEDOUT 129.10.116.85:443
| Waiting 14 seconds before trying again

[codereport]

will merge to see if works :)