Do not auto-request EPEL x.y modules
    
    After the EPEL 10.0 mass branching, we discovered that running `fedpkg
    request-branch epel10.0` would file SCM requests for:
    
    - New Branch "epel10.0" for "rpms/<name>"
    - New Repo for "modules/<name>"
    - New Branch "epel10.0" for "modules/<name>"
    
    The second two are invalid and unwanted.  Thankfully Fabio Valentini
    (@decathorpe) noticed that this was similar to what was happening for
    ELN a while back, an pointed me to RELEASE_BRANCH_REGEX.  This adjust
    that regex to also accept EPEL minor version branches.
    
    Related: #564
    
    Signed-off-by: Carl George <carlwgeorge@gmail.com>