upgrade dependency ipc-channel – fixes security advisory RUSTSEC-2025-0141

[ilka-schulz]

This PR upgrades the ipc-channel dependency and thus fixes the security advisory RUSTSEC-2025-0141.

To Do

This test fails:

$ make test
[...]
thread 'main' panicked at /home/user/procspawn/src/core.rs:355:13:
could not send event over ipc channel: SerializationError(SerDeError(SerializeSeqLengthUnknown))

However, it also fails on main:

$ make test
[...]
thread 'main' panicked at /home/user/procspawn/src/core.rs:352:13:
could not send event over ipc channel: SequenceMustHaveLength

[ilka-schulz]

@mitsuhiko I would love if you could give this PR a review. Maybe can you point me in the right direction where to look for the source of the could not send event over ipc channel: SequenceMustHaveLength error?