Add chastityfilter_flag to inputs for rqcfilter.wdl

[mflynn-lanl]

ReadsQC is failing on NMDC-EDGE for SRA samples because of an error:
java.lang.Exception: Strangely formatted read. Please disable chastityfilter with the flag chastityfilter=f
We would like to add chastityfilter_flag to the inputs for rqcfilter.wdl. @aclum, Chien-Chi mentioned that this was removed because it interferes with automatic integration.

[aclum]

@mflynn-lanl are we okay to close this? I think we've tracked down the issue to other problems.

[mflynn-lanl]

I don't remember seeing anything about other problems causing this issue?

[aclum]

@mflynn-lanl there were memory issues caused by not specifying extend=f, see microbiomedata/metaT_ReadsQC#4