Update Rust crate smoltcp to 0.14

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
smoltcp	workspace.dependencies	minor	0.13 → 0.14

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Release Notes

smoltcp-rs/smoltcp (smoltcp)

v0.14.0

Compare Source

• wire: Expose the checksum module publicly, so downstream crates can compute RFC 1071 Internet checksums over discontiguous buffers. (#​1172)
• tcp: don't rate-limit ACKs for out-of-window data segments. (#​1162)
• tcp: more rfc-compliant out-of-window rx handling. (#​1164)
• tcp: better handling of MSS (#​1161)
• tcp: congestion control api redesign to better support loss-based algorithms (#​1154)
• tcp: make reno RFC compliant (#​1156)
• tcp: make CUBIC RFC compliant (#​1157)
• tcp: fast retransmit improvements (#​1155)
• Implement core::error::Error for errors (#​1175)
• ip: Optimize the internet checksum calculation (#​1176)
• Upgrade defmt to version 1
• tcp: add single-pass zero-allocation TcpOptionSummary parser (#​1194)
• phy: add TCP segmentation offload support (#​1148)

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