rebase: Bump golang.org/x/sys from 0.11.0 to 0.12.0

Bumps [golang.org/x/sys](https://github.com/golang/sys) from 0.11.0 to 0.12.0.
- [Commits](https://github.com/golang/sys/compare/v0.11.0...v0.12.0)

---
updated-dependencies:
- dependency-name: golang.org/x/sys
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

vendor/golang.org/x/sys/unix/mkerrors.sh

@@ -583,6 +583,7 @@ ccflags="$@"
 		$2 ~ /^PERF_/ ||
 		$2 ~ /^SECCOMP_MODE_/ ||
 		$2 ~ /^SEEK_/ ||
+		$2 ~ /^SCHED_/ ||
 		$2 ~ /^SPLICE_/ ||
 		$2 ~ /^SYNC_FILE_RANGE_/ ||
 		$2 !~ /IOC_MAGIC/ &&

vendor/golang.org/x/sys/unix/syscall_linux.go

@@ -2471,6 +2471,29 @@ func Pselect(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timespec, sigmask *
 	return pselect6(nfd, r, w, e, mutableTimeout, kernelMask)
 }
 
+//sys	schedSetattr(pid int, attr *SchedAttr, flags uint) (err error)
+//sys	schedGetattr(pid int, attr *SchedAttr, size uint, flags uint) (err error)
+
+// SchedSetAttr is a wrapper for sched_setattr(2) syscall.
+// https://man7.org/linux/man-pages/man2/sched_setattr.2.html
+func SchedSetAttr(pid int, attr *SchedAttr, flags uint) error {
+	if attr == nil {
+		return EINVAL
+	}
+	attr.Size = SizeofSchedAttr
+	return schedSetattr(pid, attr, flags)
+}
+
+// SchedGetAttr is a wrapper for sched_getattr(2) syscall.
+// https://man7.org/linux/man-pages/man2/sched_getattr.2.html
+func SchedGetAttr(pid int, flags uint) (*SchedAttr, error) {
+	attr := &SchedAttr{}
+	if err := schedGetattr(pid, attr, SizeofSchedAttr, flags); err != nil {
+		return nil, err
+	}
+	return attr, nil
+}
+
 /*
  * Unimplemented
  */

vendor/golang.org/x/sys/unix/syscall_unix.go

@@ -549,6 +549,9 @@ func SetNonblock(fd int, nonblocking bool) (err error) {
 	if err != nil {
 		return err
 	}
+	if (flag&O_NONBLOCK != 0) == nonblocking {
+		return nil
+	}
 	if nonblocking {
 		flag |= O_NONBLOCK
 	} else {

vendor/golang.org/x/sys/unix/zerrors_linux.go

@@ -2821,6 +2821,23 @@ const (
 	RWF_SUPPORTED                               = 0x1f
 	RWF_SYNC                                    = 0x4
 	RWF_WRITE_LIFE_NOT_SET                      = 0x0
+	SCHED_BATCH                                 = 0x3
+	SCHED_DEADLINE                              = 0x6
+	SCHED_FIFO                                  = 0x1
+	SCHED_FLAG_ALL                              = 0x7f
+	SCHED_FLAG_DL_OVERRUN                       = 0x4
+	SCHED_FLAG_KEEP_ALL                         = 0x18
+	SCHED_FLAG_KEEP_PARAMS                      = 0x10
+	SCHED_FLAG_KEEP_POLICY                      = 0x8
+	SCHED_FLAG_RECLAIM                          = 0x2
+	SCHED_FLAG_RESET_ON_FORK                    = 0x1
+	SCHED_FLAG_UTIL_CLAMP                       = 0x60
+	SCHED_FLAG_UTIL_CLAMP_MAX                   = 0x40
+	SCHED_FLAG_UTIL_CLAMP_MIN                   = 0x20
+	SCHED_IDLE                                  = 0x5
+	SCHED_NORMAL                                = 0x0
+	SCHED_RESET_ON_FORK                         = 0x40000000
+	SCHED_RR                                    = 0x2
 	SCM_CREDENTIALS                             = 0x2
 	SCM_RIGHTS                                  = 0x1
 	SCM_TIMESTAMP                               = 0x1d

vendor/golang.org/x/sys/unix/zsyscall_linux.go

@@ -2197,3 +2197,23 @@ func getresgid(rgid *_C_int, egid *_C_int, sgid *_C_int) {
 	RawSyscallNoError(SYS_GETRESGID, uintptr(unsafe.Pointer(rgid)), uintptr(unsafe.Pointer(egid)), uintptr(unsafe.Pointer(sgid)))
 	return
 }
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func schedSetattr(pid int, attr *SchedAttr, flags uint) (err error) {
+	_, _, e1 := Syscall(SYS_SCHED_SETATTR, uintptr(pid), uintptr(unsafe.Pointer(attr)), uintptr(flags))
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func schedGetattr(pid int, attr *SchedAttr, size uint, flags uint) (err error) {
+	_, _, e1 := Syscall6(SYS_SCHED_GETATTR, uintptr(pid), uintptr(unsafe.Pointer(attr)), uintptr(size), uintptr(flags), 0, 0)
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}

vendor/golang.org/x/sys/unix/ztypes_linux.go

@@ -5868,3 +5868,18 @@ const (
 	VIRTIO_NET_HDR_GSO_UDP_L4 = 0x5
 	VIRTIO_NET_HDR_GSO_ECN    = 0x80
 )
+
+type SchedAttr struct {
+	Size     uint32
+	Policy   uint32
+	Flags    uint64
+	Nice     int32
+	Priority uint32
+	Runtime  uint64
+	Deadline uint64
+	Period   uint64
+	Util_min uint32
+	Util_max uint32
+}
+
+const SizeofSchedAttr = 0x38