lib: Ignore a bunch of bogus GCC 11 warnings.

-Werror=analyzer-file-leak doesn't follow CLEANUP_FCLOSE properly.

yara.c:64:24: error: leak of FILE '<unknown>' [CWE-775] [-Werror=analyzer-file-leak]
   64 |   CLEANUP_FCLOSE FILE *fp = NULL;
      |                        ^~

lib/tsk.c

@@ -71,6 +71,8 @@ guestfs_impl_find_inode (guestfs_h *g, const char *mountable, int64_t inode)
   return parse_dirent_file (g, tmpfile);  /* caller frees */
 }
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wanalyzer-file-leak"
 /* Parse the file content and return dirents list.
  * Return a list of tsk_dirent on success, NULL on error.
  */
@@ -101,6 +103,7 @@ parse_dirent_file (guestfs_h *g, const char *tmpfile)
 
   return dirents;
 }
+#pragma GCC diagnostic pop
 
 /* Deserialise the file content and populate the dirent list.
  * Return the number of deserialised dirents, -1 on error.

lib/yara.c

@@ -54,6 +54,8 @@ guestfs_impl_yara_scan (guestfs_h *g, const char *path)
   return parse_yara_detection_file (g, tmpfile);  /* caller frees */
 }
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wanalyzer-file-leak"
 /* Parse the file content and return detections list.
  * Return a list of yara_detection on success, NULL on error.
  */
@@ -86,6 +88,7 @@ parse_yara_detection_file (guestfs_h *g, const char *tmpfile)
 
   return detections;
 }
+#pragma GCC diagnostic pop
 
 /* Deserialise the file content and populate the detection list.
  * Return the number of deserialised detections, -1 on error.