Chore: renames stringUtils to strutil

src/detection/cpucache/cpucache_apple.c

@@ -1,6 +1,6 @@
 #include "cpucache.h"
 #include "common/sysctl.h"
-#include "common/stringUtils.h"
+#include "common/strutil.h"
 
 const char* ffDetectCPUCache(FFCPUCacheResult* result) {
     // https://developer.apple.com/documentation/kernel/1387446-sysctlbyname/determining_system_capabilities#3901385

src/detection/cpucache/cpucache_linux.c

@@ -1,6 +1,6 @@
 #include "cpucache.h"
 #include "common/io.h"
-#include "common/stringUtils.h"
+#include "common/strutil.h"
 
 static const char* parseCpuCacheIndex(FFstrbuf* path, FFCPUCacheResult* result, FFstrbuf* buffer, FFstrbuf* added) {
     uint32_t baseLen = path->length;

src/detection/cpucache/cpucache_shared.c

@@ -1,6 +1,6 @@
 #include "cpucache.h"
 #include "common/smbios.h"
-#include "common/stringUtils.h"
+#include "common/strutil.h"
 
 typedef struct FFSmbiosCacheInfo {
     FFSmbiosHeader Header;