tree-wide: Sort includes

This was done by running a locally built clang-format with
https://github.com/llvm/llvm-project/pull/137617 and
https://github.com/llvm/llvm-project/pull/137840 applied on all .c
and .h files.

src/timesync/test-timesync.c

@@ -4,10 +4,10 @@
 
 #include "log.h"
 #include "macro.h"
+#include "tests.h"
 #include "timesyncd-conf.h"
 #include "timesyncd-manager.h"
 #include "timesyncd-server.h"
-#include "tests.h"
 
 TEST(manager_parse_string) {
         /* Make sure that NTP_SERVERS is configured to something

src/timesync/timesyncd-manager.c

@@ -26,9 +26,9 @@
 #include "log.h"
 #include "logarithm.h"
 #include "network-util.h"
+#include "random-util.h"
 #include "ratelimit.h"
 #include "resolve-private.h"
-#include "random-util.h"
 #include "socket-util.h"
 #include "string-util.h"
 #include "strv.h"