Bump numpy from 1.19.1 to 1.22.0 in /alpaca/statistically-significant

Bumps [numpy](https://github.com/numpy/numpy) from 1.19.1 to 1.22.0.
- [Release notes](https://github.com/numpy/numpy/releases)
- [Changelog](https://github.com/numpy/numpy/blob/main/doc/HOWTO_RELEASE.rst)
- [Commits](numpy/numpy@v1.19.1...v1.22.0)

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

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

Author: dependabot[bot]

alpaca/statistically-significant/requirements.txt

@@ -12,7 +12,7 @@ idna==2.10
 kiwisolver==1.2.0
 matplotlib==3.2.2
 multidict==4.7.6
-numpy==1.19.1
+numpy==1.22.0
 pandas==1.1.1
 patsy==0.5.1
 Pillow==8.3.2