Enable gating tests on rawhide

Purpose: prevent a build from being pushed to stable
unless tests/tests.yml pass; require manual override
on failure.

Counterargument: this is going to fail effective now.
Rawhide has been highly unstable, with kernel and
systemd bugs one right after the other, all preventing
podman tests from passing. (Current blocker: rhbz1740664
in systemd-udev, in which /dev/net/tun is mode 600
which causes slirp4netns to fail).

Countercounterargument: even if all these failures aren't
podman's fault, we still want to catch them and at least
report them early. I am monitoring test runs but I don't
want to be the single point of failure.

Signed-off-by: Ed Santiago <santiago@redhat.com>

gating.yaml

@@ -0,0 +1,6 @@
+--- !Policy
+product_versions:
+  - fedora-*
+decision_context: bodhi_update_push_stable
+rules:
+  - !PassingTestCaseRule {test_case_name: org.centos.prod.ci.pipeline.allpackages-build.package.test.functional.complete}