Fix compiler flags for MSVC Clang

[KillerxDBr]

Fix incorrect flags when compiling nob.c with MSVC Clang

Expected:

ℹ️ [INFO] CMD: clang -Wall -Wextra -Wswitch-enum -std=c99 -g -D_CRT_SECURE_NO_WARNINGS -I. -o build/tests/minimal_log_level tests/minimal_log_level.c

Actual:

ℹ️ [INFO] CMD: clang /W4 /nologo /D_CRT_SECURE_NO_WARNINGS -I. -o build/tests/minimal_log_level tests/minimal_log_level.c
clang: error: no such file or directory: '/W4'
clang: error: no such file or directory: '/nologo'
clang: error: no such file or directory: '/D_CRT_SECURE_NO_WARNINGS'
🚨 [ERROR] command exited with exit code 1
🚨 [ERROR] command exited with exit code 1

Those flags would work in clang-cl, but i didnt found a way to differentiate those two