Utilities/Release: Use ${VAR} instead of @VAR@ syntax

The Utilities/Release/Cygwin/CMakeLists.txt is processed in the project,
not configured, so we should avoid using @-replacement syntax.
tests: Simplify RunCMake.CMP0052 test

We do not need to enable any languages for these tests.
Merge topic 'dev/faster-evis' into next

631a6082 tests: Simplify RunCMake.CMP0052 test
37435201 Utilities/Release: Use ${VAR} instead of @VAR@ syntax