ignore README examples in cargo test

bump 0.3.7 -> 0.4.0

add support for convenient testing

bump aocd-proc 0.3.1 -> 0.4.0

update proc macros to support a test file

bump 0.3.6 -> 0.3.7

nicer output messages with emoji

bump 0.3.5 -> 0.3.6

remove leftover dbg! statement

bump 0.3.4 -> 0.3.5

run tests serially in CI

clean up client header handling

try to debug flaky test in CI

clean up file operations

add basic gitignore