Test is based on a public http server which might not be always
available, so the example test checks if it's available
so the test could be (by)passed if the public server not available.
But we didn't correctly check if a socket/timeout exception occurs
when trying to connect
Replaced hyphens with underscores in examples
project definition for all examples which had
hyphens in their project name. dpp-enrollee is
an exceptions because the name matches the
project directory name while the project
directory also contains hyphens.
