build(deps): update strum requirement from 0.25 to 0.26

---
updated-dependencies:
- dependency-name: strum
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

aoc2023/Cargo.toml

@@ -25,7 +25,7 @@ rayon = { version = "1.8" }
 rustc-hash = { version = "1.1" }
 rustworkx-core = { version = "0.13" }
 smallvec = { version = "1.11" }
-strum = { version = "0.25", features = ["derive"] }
+strum = { version = "0.26", features = ["derive"] }
 z3 = { version = "0.12", optional = true }
 
 [features]