fix expect-dap.script for #185 and increase timeout to 10 on expect-dev-entrypoint.script

Closes #185 (closed)

This is a rewrite of expect-dap.script to try again if the container does not come up before telnet to the debugpy port is tried. It also changes the timeout in expect-dev-entrypoint.script from 5 seconds to 10 seconds to account for less powerful runners that cannot start the container and execute the commands in less than 5 seconds.