`make must-gather` is broken

[rhmdnd]

The must-gather target expects to call must-gather-push, but that target doesn't exist, resulting in the following error:

$ make must-gather
podman build -t quay.io/compliance-operator/must-gather:latest -f images/must-gather/Dockerfile .
STEP 1/4: FROM quay.io/openshift/origin-must-gather:latest
Trying to pull quay.io/openshift/origin-must-gather:latest...
Getting image source signatures
Copying blob 667a9d862496 done
Copying blob 45de3a48f7a9 done
Copying blob d8190195889e done
Copying blob 97da74cc6d8f done
Copying blob b30c4cf18c38 done
Copying blob 36bfbf63f928 done
Copying blob d1dd349d9bb4 done
Copying config 62888ee17c done
Writing manifest to image destination
Storing signatures
STEP 2/4: RUN mv /usr/bin/gather /usr/bin/gather_original
--> 8adb25e7385
STEP 3/4: COPY utils/must-gather/* /usr/bin/
--> d9d776c5a51
STEP 4/4: ENTRYPOINT /usr/bin/gather
COMMIT quay.io/compliance-operator/must-gather:latest
--> 3daa7356057
Successfully tagged quay.io/compliance-operator/must-gather:latest
3daa735605794634943982ba77a85b945614546f304afcc7c893f366c9fac41a
make: *** No rule to make target 'must-gather-push', needed by 'must-gather'.  Stop.