[llvm] [lldb][windows] build lldb and lldb-dap in PR testing (PR #195884)

[Charles Zablit via llvm-commits]

charles-zablit wrote:

> Numbers from building locally with sccache/without sccache would probably suffice.

Building locally from a fresh cache:
```
$ Measure-Command { cmake --preset release; cmake --build --preset release --target lldb lldb-dap | Out-Default }
Days              : 0
Hours             : 0
Minutes           : 12
Seconds           : 47
Milliseconds      : 6
Ticks             : 7670065991
TotalDays         : 0.00887739119328704
TotalHours        : 0.213057388638889
TotalMinutes      : 12.7834433183333
TotalSeconds      : 767.0065991
TotalMilliseconds : 767006.5991
```

With one change in lldb and a warm cache:
```
Measure-Command { cmake --preset release; cmake --build --preset release --target lldb lldb-dap | Out-Default }
Days              : 0
Hours             : 0
Minutes           : 0
Seconds           : 34
Milliseconds      : 926
Ticks             : 349268277
TotalDays         : 0.000404245690972222
TotalHours        : 0.00970189658333333
TotalMinutes      : 0.582113795
TotalSeconds      : 34.9268277
TotalMilliseconds : 34926.8277
```

https://github.com/llvm/llvm-project/pull/195884