[rpms/perl-ExtUtils-CBuilder] PR #2: Update license to SPDX format; Add missing gating.yaml

[Jitka Plesnikova]

jplesnik opened a new pull-request against the project: `perl-ExtUtils-CBuilder` that you
are following:
``
Update license to SPDX format; Add missing gating.yaml
``

To reply, visit the link below
https://src.fedoraproject.org/rpms/perl-ExtUtils-CBuilder/pull-request/2