chore: lock CodeQL analysis pull_request param to master branch (#6342)
chore: lock CodeQL analysis pull_request param to master branch (#6342)

* CoreQL will not understand which base branch to compare against using wilcards see:
https://bluecolibri.org/2020/10/05/github-enabling-code-scanning-for-a-repository

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