Bug 30718: (QA follow-up) KohaDates filter on inputs

Bug 30718: (QA follow-up) KohaDates filter on inputs

Found another one on a visible input. Replaced with html filter.
koha-tmpl/intranet-tmpl/prog/en/modules/onboarding/onboardingstep2.tt:                                            <input type="text" class="enrolmentperioddate" name="enrolmentperioddate" id="enrolmentperioddate" value="[% category.enrolmentperioddate | $KohaDates %]" />

But we also have a few hidden ones. First verified that cleanborrowers did not work anymore with expirydate.
Fixed it with passing iso dateformat to resolve.
intranet-tmpl/prog/en/modules/acqui/parcels.tt:            <input type="hidden" name="shipmentdate" value="[% shipmentdate | $KohaDates %]" />
intranet-tmpl/prog/en/modules/serials/subscription-add.tt:                                          <input type="hidden" id="acqui_date" name="firstacquidate" value="[% firstacquidate | $KohaDates %]"/>
intranet-tmpl/prog/en/modules/tools/batch_extend_due_dates.tt:                                    <input type="hidden" name="new_hard_due_date" value="[% new_hard_due_date | $KohaDates %]" />
intranet-tmpl/prog/en/modules/tools/cleanborrowers.tt:            <input type="hidden" name="not_borrowed_since" value="[% not_borrowed_since | $KohaDates %]" />
intranet-tmpl/prog/en/modules/tools/cleanborrowers.tt:            <input type="hidden" name="last_issue_date" value="[% last_issue_date | $KohaDates %]" />
intranet-tmpl/prog/en/modules/tools/cleanborrowers.tt:            <input type="hidden" name="borrower_dateexpiry" value="[% borrower_dateexpiry | $KohaDates %]" />
intranet-tmpl/prog/en/modules/tools/cleanborrowers.tt:                <input type="hidden" name="borrower_lastseen" value="[% borrower_lastseen | $KohaDates %]" />

Test plan:
Try cleanborrowers with expiry date.
cd koha-tmpl; git grep "<input.*\$KohaDates" | grep -v iso

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>