build(deps): bump ndarray from 0.15.1 to 0.15.2

Bumps [ndarray](https://github.com/rust-ndarray/ndarray) from 0.15.1 to 0.15.2.
- [Release notes](https://github.com/rust-ndarray/ndarray/releases)
- [Changelog](https://github.com/rust-ndarray/ndarray/blob/master/RELEASES.md)
- [Commits](https://github.com/rust-ndarray/ndarray/compare/0.15.1...0.15.2)

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

Cargo.lock

@@ -38,7 +38,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b9a69a963b70ddacfcd382524f72a4576f359af9334b3bf48a79566590bb8bfa"
 dependencies = [
  "bitrate",
- "cortex-m 0.6.7",
+ "cortex-m 0.7.2",
  "embedded-hal",
 ]
 
@@ -457,9 +457,9 @@ checksum = "546c37ac5d9e56f55e73b677106873d9d9f5190605e41a856503623648488cae"
 
 [[package]]
 name = "ndarray"
-version = "0.15.1"
+version = "0.15.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cc1372704f14bb132a49a6701c2238970a359ee0829fed481b522a63bf25456a"
+checksum = "02b2e4807aaa21dc6dcc3417e5902dc199c3648043bf27b7af4b202332fe4760"
 dependencies = [
  "matrixmultiply",
  "num-complex",
@@ -810,7 +810,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8b672c837e0ee8158ecc7fce0f9a948dd0693a9c588338e728d14b73307a0b7d"
 dependencies = [
  "bare-metal 0.2.5",
- "cortex-m 0.6.7",
+ "cortex-m 0.7.2",
  "cortex-m-rt",
  "vcell",
 ]