Building with SCIP breaks: Target SCIP::libscip not available

**What version of OR-Tools and what language are you using?**
Version: 9.14
Language: C++

**Which solver are you using (e.g. CP-SAT, Routing Solver, GLOP, BOP, Gurobi)**
n/a

**What operating system (Linux, Windows, ...) and version?**
FreeBSD 15

**What did you do?**
Steps to reproduce the behavior:
build

**What did you expect to see**
n/a

**What did you see instead?**

```
CMake Error at cmake/check_deps.cmake:111 (message):
Target SCIP::libscip not available.
Call Stack (most recent call first):
CMakeLists.txt:453 (include)
```

**Anything else we should know about your project / environment**

SCIP-10.0.0
clang-19