chore: Upgrade Struts2 to 2.5.26 (#7008)
chore: Upgrade Struts2 to 2.5.26 (#7008)

Signed-off-by: Morten Svanaes <a41857d6736fa06c399d9d380fc5bdd0dc50a60a@dhis2.org>
dhis2/dhis2-core,dhis2/dhis2-core,hispindia/dhis2-Core,hispindia/dhis2-Core,hispindia/dhis2-Core,dhis2/dhis2-core,msf-oca-his/dhis2-core,msf-oca-his/dhis2-core,msf-oca-his/dhis2-core,msf-oca-his/dhis2-core,hispindia/dhis2-Core,dhis2/dhis2-core,msf-oca-his/dhis2-core,dhis2/dhis2-core,hispindia/dhis2-Core