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>

Cargo.toml

@@ -35,7 +35,7 @@ hyper = { version = "1.0", features = ["full"] }
 hyper-staticfile = "0.10"
 tokio = { version = "1", features = ["full"] }
 opener = "0.6"
-strum = { version = "0.25", features = ["derive"] }
+strum = { version = "0.26", features = ["derive"] }
 log = "0.4"
 lg = "0.1"
 dialoguer = "0.11"