Update linspace requirement from 0.1.1 to 0.2.2

---
updated-dependencies:
- dependency-name: linspace
  dependency-version: 0.2.2
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Cargo.toml

@@ -43,5 +43,5 @@ serde = {version = "*", optional = true}
 [dev-dependencies]
 num = "0.4.3"
 plotters = "0.3.7"
-linspace = "0.1.1"
+linspace = "0.2.2"
 libm = "0.2.15"