New bugfix release 2.53.2

New snapd release 2.53.2

See https://forum.snapcraft.io/t/the-snapd-roadmap/1973 for high-level overview.

• interfaces/builtin/block_devices: allow blkid to print block device attributes/run/udev/data/b{major}:{minor}
• cmd/libsnap-confine-private: do not deny all devices when reusing the device cgroup
• interfaces/builtin/time-control: allow pps access
• interfaces/u2f-devices: add Trezor and Trezor v2 keys
• interfaces: timezone-control, add permission for ListTimezones DBus call
• interfaces/apparmor/template.go: allow udevadm from merged usr systems
• interface/modem-manager: allow connecting to the mbim/qmi proxy
• interfaces/network-manager-observe: Update for libnm client library
• cmd/snap-seccomp/syscalls: update syscalls to match libseccomp abad8a8f4
• sandbox/cgroup: freeze and thaw cgroups related to services and scopes only
• o/hookstate: print cohort with snapctl refresh --pending
• cmd/snap-confine: lazy set up of device cgroup, only when devices were assigned
• tests: ensure systemd-timesyncd is installed on debian
• tests/lib/pkgdb: install strace on Debian 11 and Sid
• tests/main/snapd-sigterm: flush, use retry
• tests/main/snapd-sigterm: fix race conditions
• release-tools/repack-debian-tarball.sh: fix c-vendor dir
• data/selinux: allow snap-confine to read udev's database
• interfaces/dsp: add more ambarella things* interfaces/dsp: add more ambarella things

Full Changelog: 2.53.1...2.53.2