build(deps): Update Rust crate strum_macros to v0.26.4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
strum_macros	dependencies	patch	0.26.3 -> 0.26.4

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Release Notes

Peternator7/strum (strum_macros)

v0.26.4

• #​360: Fixes bug introduced with new string interpolation feature where
  unit structs took an implicit unnecessary dependency on ::core::alloc.

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