Use CMake's builtin control for MSVCRT link mode

libmongocrypt provided a configuration parameter to control the type of
the MSVC runtime library. This parameter was redundant with the control
that is offered by CMake already. Prefer instead to use that control.

The parameter, CMAKE_MSVC_RUNTIME_LIBRARY, was added in CMake 3.15, which
is the minimum CMake version required by libmongocrypt.

Author: vector-of-bool

.github/scripts/libmongocrypt.mjs

@@ -99,8 +99,16 @@ export async function buildLibMongoCrypt(libmongocryptRoot, nodeDepsRoot, option
   });
 
   const WINDOWS_CMAKE_FLAGS =
-    process.platform === 'win32' // Windows is still called "win32" when it is 64-bit
-      ? toCLIFlags({ Thost: 'x64', A: 'x64', DENABLE_WINDOWS_STATIC_RUNTIME: 'ON' })
+    process.platform === 'win32'
+      ? toCLIFlags({
+        // Tell CMake that binaries should link with the static MSVC runtime instead of
+        // the default dynamic one.
+        DCMAKE_MSVC_RUNTIME_LIBRARY: 'MultiThreaded$<$<CONFIG:Debug>:Debug>',
+        // Tell CMake to use the MSVC 64-bit compiler toolchain
+        T: 'host=x64',
+        // Tell CMake to generate a 64-bit binaries
+        A: 'x64',
+      })
       : [];
 
   const DARWIN_CMAKE_FLAGS =