build: go 1.24

We were running behind and there were quite some deprecations to update.
This was mostly in the upstream copy/pasta package but seems quite
minimal.

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

@@ -1102,3 +1102,90 @@ func (s *Strioctl) SetInt(i int) {
 func IoctlSetStrioctlRetInt(fd int, req int, s *Strioctl) (int, error) {
 	return ioctlPtrRet(fd, req, unsafe.Pointer(s))
 }
+
+// Ucred Helpers
+// See ucred(3c) and getpeerucred(3c)
+
+//sys	getpeerucred(fd uintptr, ucred *uintptr) (err error)
+//sys	ucredFree(ucred uintptr) = ucred_free
+//sys	ucredGet(pid int) (ucred uintptr, err error) = ucred_get
+//sys	ucredGeteuid(ucred uintptr) (uid int) = ucred_geteuid
+//sys	ucredGetegid(ucred uintptr) (gid int) = ucred_getegid
+//sys	ucredGetruid(ucred uintptr) (uid int) = ucred_getruid
+//sys	ucredGetrgid(ucred uintptr) (gid int) = ucred_getrgid
+//sys	ucredGetsuid(ucred uintptr) (uid int) = ucred_getsuid
+//sys	ucredGetsgid(ucred uintptr) (gid int) = ucred_getsgid
+//sys	ucredGetpid(ucred uintptr) (pid int) = ucred_getpid
+
+// Ucred is an opaque struct that holds user credentials.
+type Ucred struct {
+	ucred uintptr
+}
+
+// We need to ensure that ucredFree is called on the underlying ucred
+// when the Ucred is garbage collected.
+func ucredFinalizer(u *Ucred) {
+	ucredFree(u.ucred)
+}
+
+func GetPeerUcred(fd uintptr) (*Ucred, error) {
+	var ucred uintptr
+	err := getpeerucred(fd, &ucred)
+	if err != nil {
+		return nil, err
+	}
+	result := &Ucred{
+		ucred: ucred,
+	}
+	// set the finalizer on the result so that the ucred will be freed
+	runtime.SetFinalizer(result, ucredFinalizer)
+	return result, nil
+}
+
+func UcredGet(pid int) (*Ucred, error) {
+	ucred, err := ucredGet(pid)
+	if err != nil {
+		return nil, err
+	}
+	result := &Ucred{
+		ucred: ucred,
+	}
+	// set the finalizer on the result so that the ucred will be freed
+	runtime.SetFinalizer(result, ucredFinalizer)
+	return result, nil
+}
+
+func (u *Ucred) Geteuid() int {
+	defer runtime.KeepAlive(u)
+	return ucredGeteuid(u.ucred)
+}
+
+func (u *Ucred) Getruid() int {
+	defer runtime.KeepAlive(u)
+	return ucredGetruid(u.ucred)
+}
+
+func (u *Ucred) Getsuid() int {
+	defer runtime.KeepAlive(u)
+	return ucredGetsuid(u.ucred)
+}
+
+func (u *Ucred) Getegid() int {
+	defer runtime.KeepAlive(u)
+	return ucredGetegid(u.ucred)
+}
+
+func (u *Ucred) Getrgid() int {
+	defer runtime.KeepAlive(u)
+	return ucredGetrgid(u.ucred)
+}
+
+func (u *Ucred) Getsgid() int {
+	defer runtime.KeepAlive(u)
+	return ucredGetsgid(u.ucred)
+}
+
+func (u *Ucred) Getpid() int {
+	defer runtime.KeepAlive(u)
+	return ucredGetpid(u.ucred)
+}