Implement DecodeWithMemTracking for RuntimeCall

[serban300]

In paritytech/parity-scale-codec#616 we added support for decoding with mem limit for parity-scale-codec.

We would like to use that for RuntimeCall

[serban300]

I will publish at most one weekly update from now on in order to make it easier to track the progress here. Also will delete some of the older comments for the same reason.

10 - 14 February 2025

• after a couple of parity-scale-codec releases that we had to yank because of backwards compatibility issues, we released v3.7.4 which seems ok: Release 3.7.4 parity-scale-codec#701
• merged the 2 PRs that implemented DecodeWithMemTracking for some base structures in:
  • parity-common: Implement DecodeWithMemTracking for some structs parity-common#897
  • finality-grandpa: Implement DecodeWithMemTracking finality-grandpa#165
• published patch releases for
  • bounded-collections: https://crates.io/crates/bounded-collections/0.2.3
  • impl-codec: https://crates.io/crates/impl-codec/0.7.1
  • finality-grandpa: https://crates.io/crates/finality-grandpa/0.16.3