Remove getLease4 from lease_mgr for Kea >= 1.9.4

[axarriola]

SUMMARY

• Added HAVE_GETLEASE4_METHOD macro to include getLeases4 in LeaseMgr methods for Kea versions older than 1.9.4.
• Added step to remove "-git" from version string.

The getLease4 method was removed starting Kea version 1.9.4 (MR, see ChangeLog excerpt below). This causes the module build to exit with error for those Kea versions.

1851.   [func]      fdupont
    Removed methods fetching leases by both client identifier
    and hardware addresses from the API.
    (Gitlab #1540)

ISSUE TYPE

• Build error for Kea versions 1.9.4 and newer.

COMPONENT NAME

M keamodule/lease_mgr.cc M keamodule/setup.py

ADDITIONAL INFORMATION

Tested module build and basic DHCP lease with Kea 2.0.0.

[davejohncole]

Sorry for taking so long to review this.