Bump vector_math to 1c72944e8c2f02340a1d90b32aab2e3836cef8cc
Bump vector_math to 1c72944e8c2f02340a1d90b32aab2e3836cef8cc

Changes:
```
> git log --format="%C(auto) %h %s" 0cbed09..1c72944
 https://dart.googlesource.com/external/github.com/google/vector_math.dart.git/+/1c72944 CI: Remove explicit --packages arg to coverage (#263)
 https://dart.googlesource.com/external/github.com/google/vector_math.dart.git/+/9c2e6d3 Fix usage of pub (#258)

```

Diff: https://dart.googlesource.com/external/github.com/google/vector_math.dart.git/+/0cbed0914d49a6a44555e6d5444c438a4a4c3fc1~..1c72944e8c2f02340a1d90b32aab2e3836cef8cc/
Change-Id: I8ade6b88cb2d8112be38367a917af82f12335370
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/246724
Commit-Queue: Devon Carew <e996497f4f2225f0ee7a9f4d1696ee710b488b66@google.com>
Reviewed-by: Nate Bosch <dc212c74d8afde9c690fdd09e74d3e5c5d5a3de0@google.com>

dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk