seccomp: add name_to_handle_at to allowlist

Based on the analysis on [the previous PR][1].

  [1]: https://github.com/moby/moby/pull/45766#pullrequestreview-1493908145

Signed-off-by: Bjorn Neergaard <bjorn.neergaard@docker.com>

profiles/seccomp/default.json

@@ -237,6 +237,7 @@
 				"munlock",
 				"munlockall",
 				"munmap",
+				"name_to_handle_at",
 				"nanosleep",
 				"newfstatat",
 				"_newselect",

profiles/seccomp/default_linux.go

@@ -229,6 +229,7 @@ func DefaultProfile() *Seccomp {
 					"munlock",
 					"munlockall",
 					"munmap",
+					"name_to_handle_at",
 					"nanosleep",
 					"newfstatat",
 					"_newselect",