You are assuming that is actually an option. There is nothing to suggest the current Australian government would not prevent you from resigning until the task had been completed. This is the same government currently attempting to make it illegal to boycott businesses that are damaging to the environment.
Also, the proposed anti-boycott rules have been widely criticized as unconstitutional, unworkable and ludicrously against the conservatives free speech pronouncements. Unlikely they would get support from Senate cross bench.
That's the good(ish) news - the bad is that restraints on the passing of bad law are generally pretty weak in the absence of a hostile Senate. This is particularly true with the current feeble opposition, and even more so given the general atmosphere of cowering obeisance that the major parties have allowed (or encouraged) to develop around any legislation involving the word 'security'.
The problem is not really that you couldn't resign -- it is that the company would hire replacements that would get the job done. The company executive would be compelled to.
Albanese (and his forgettable deputy Marles) have so far been a disaster for the ALP.