fix(memlimit): move goroutine execution inside refresh function

fix(memlimit): move goroutine execution inside refresh function

ci: bump ubuntu version

ci: bump ubuntu version

fix(memlimit): fix mountinfo validation logic for multiple optional f…

…ields

docs: update README.md

feat(memlimit): handle ErrNoLimit as math.MaxInt64 during refresh

feat(memlimit): replace containerd/cgroup with own cgroup implementat…

…ion (#24)

* feat(memlimit): replace containerd/cgroup with own cgroup implementation

* test(memlimit): add tests for new cgroup implementation

* chore: run go mod tidy

* chore(memlimit): Fix typos

chore: bump containerd/cgroups from v3.0.1 to v3.0.4

fix(memlimit): don't use format string with slog (#19)