internal: include <stdbool.h> in ext_headers.h

Given <stdint.h> is already there, it wouldn't hurt to have
<stdbool.h> as well, as both headers are in the C99 standard.

Signed-off-by: Daiki Ueno <dueno@redhat.com>
Signed-off-by: Stephan Mueller <smueller@chronox.de>

Author: ueno

internal/api/ext_headers.h

@@ -264,6 +264,7 @@ static const int errno_private = 0;
 #include <fcntl.h>
 #include <inttypes.h>
 #include <limits.h>
+#include <stdbool.h>
 #include <stddef.h>
 #include <stdint.h>
 #include <stdlib.h>
@@ -346,6 +347,7 @@ static inline int lc_get_time(time64_t *time_since_epoch)
 #include <fcntl.h>
 #include <inttypes.h>
 #include <limits.h>
+#include <stdbool.h>
 #include <stddef.h>
 #include <stdint.h>
 #include <stdlib.h>