Update configuration for new EPICS test environment

configure/RELEASE

-EPICS_BASE=/epics/base-7.0.5
+EPICS_BASE=/epics-test/base-7.0.6.1-rc.1
 
 E3_REQUIRE_NAME:=require
-E3_REQUIRE_VERSION:=3.4.1
+E3_REQUIRE_VERSION:=4.0.0-rc.1
 
 
 # The definitions shown below can also be placed in an untracked RELEASE.local