seccomp: Add pidfd_open and pidfd_send_signal

Signed-off-by: Mark Vainomaa <mikroskeem@mikroskeem.eu>

profiles/seccomp/default.json

@@ -232,6 +232,8 @@
 				"openat",
 				"openat2",
 				"pause",
+				"pidfd_open",
+				"pidfd_send_signal",
 				"pipe",
 				"pipe2",
 				"poll",

profiles/seccomp/default_linux.go

@@ -225,6 +225,8 @@ func DefaultProfile() *Seccomp {
 				"openat",
 				"openat2",
 				"pause",
+				"pidfd_open",
+				"pidfd_send_signal",
 				"pipe",
 				"pipe2",
 				"poll",