Error when trying to set `BADGES_ARGS: '-l ""`

[george-gca]

Thanks for the great GitHub action.

I tried to change the badge to the plastic style without a word at the front, but it throwed an error. Apparently it has problem with "", as can be seen in the line:

RESULTS_PATH=`expr "-b plastic -l "" -o lighthouse_results -r" : ".* --\?ou\?t\?p\?u\?t\?-\?p\?a\?t\?h\? \([^ ]*\).*"`;

It already uses "" to give the expr. Is there a way to overcome this? Tried to change the line to

BADGES_ARGS: "-b plastic -l '' -o lighthouse_results -r"

but to no avail.