fix: clean up test project on signal, fixes #6111

[rfay]

The Issue

• ddev debug test may have conflicts when running sequentially (and ddev debug testcleanup have no effect) #6111
• Adding build-time connectivity test

How This PR Solves The Issue

• Catch signal and clean up on exit
• Check docker build-time connectivity to internet

Manual Testing Instructions

• Ctrl-C during run, it should clean up or give a good try
• It should completely clean up after a normal run
• If not internet is available, or google.com not accessible, the failure should show

[github-actions]

Download the artifacts for this pull request:

• all-ddev-executables.zip
• ddev-linux-amd64.zip
• ddev-linux-arm64.zip
• ddev-macos-amd64.zip
• ddev-macos-arm64.zip
• ddev-windows-amd64-installer.zip

See Testing a PR.

• Test on Gitpod.
• Test on GitHub Codespaces.

[stasadev]

Tested

• Ctrl-C during run, it should clean up or give a good try
• It should completely clean up after a normal run
• If not internet is available, or google.com not accessible, the failure should show

Thanks!

---

Minor notes:

1. There is one more hard-coded port 60004.

2. $router_http_port and $router_https_port are not used in the script:

ddev/cmd/ddev/cmd/scripts/test_ddev.sh

Lines 83 to 84 in d358586

	router_http_port=$(ddev config global -j | docker run -i --rm ddev/ddev-utilities jq -r '.raw."router-http-port"' 2>/dev/null)
	router_https_port=$(ddev config global -j | docker run -i --rm ddev/ddev-utilities jq -r '.raw."router-https-port"' 2>/dev/null)

3. A typo in healtcheck > healthcheck
   

   ddev/cmd/ddev/cmd/scripts/test_ddev.sh

   Line 164 in d358586

   printf "============= ddev-${PROJECT_NAME}-web healtcheck run =========\n" && \

[rfay]

Thanks for the careful review!

• Removed extraneous environment variables
• Added curl of the webserver http bind port

[rfay]

Thanks for your eagle eye!

[stasadev]

Tested again, all good 👍