Fix MSVC build issues

src/prng/splitmix64/splitmix64.c

@@ -67,7 +67,7 @@ wp_intern void seedOsGenerator(u64 seed) {
 		seed = (u64)ts.tv_nsec;
 	}
 
-	srand(seed);
+	srand((u32)seed);
 }
 
 wp_intern u64 genRandomNumber(void) {

src/prng/xorshift/xorshift.c

@@ -13,7 +13,10 @@ WpXor256State wpPrngXorshiftInit(void) {
 
 WpXor256State wpPrngXorshiftInitWithSeed(u64 seed) {
 	WpSplitmix64State sm64;
-	if (seed > 0) {
+
+	// NOTE (Abdelrahman): Extract into a variable to get rid of MSVC Spectre mitigation warnings
+	b8 seed_not_zero = seed > 0;
+	if (seed_not_zero) {
 		sm64 = wpPrngSplitmix64InitWithSeed(seed);
 	} else {
 		sm64 = wpPrngSplitmix64Init();