path-util: Reduce transitive includes

src/libsystemd/sd-device/device-filter.c

@@ -4,6 +4,7 @@
 
 #include "device-filter.h"
 #include "path-util.h"
+#include "strv.h"
 
 int update_match_strv(Hashmap **match_strv, const char *key, const char *value, bool clear_on_null) {
         char **strv;

src/libsystemd/sd-event/sd-event.c

@@ -38,6 +38,7 @@
 #include "stat-util.h"
 #include "string-table.h"
 #include "string-util.h"
+#include "strv.h"
 #include "strxcpyx.h"
 #include "time-util.h"
 

src/libsystemd/sd-json/json-util.c

@@ -14,7 +14,9 @@
 #include "parse-util.h"
 #include "path-util.h"
 #include "process-util.h"
+#include "stat-util.h"
 #include "string-util.h"
+#include "strv.h"
 #include "syslog-util.h"
 #include "user-util.h"