build(deps): update photutils requirement

Updates the requirements on [photutils](https://github.com/astropy/photutils) to permit the latest version.
- [Release notes](https://github.com/astropy/photutils/releases)
- [Changelog](https://github.com/astropy/photutils/blob/main/CHANGES.rst)
- [Commits](astropy/photutils@1.13.0...2.1.0)

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

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

requirements.txt

@@ -2,7 +2,7 @@ astropy>=6.1.2,<7.1.0
 ipython>=8.27.0,<8.31.0
 matplotlib>=3.9.1,<3.10.0
 numpy>=2.1.0,<2.2.0
-photutils>=1.13.0,<2.1.0
+photutils>=1.13.0,<2.2.0
 poppy>=1.0.0
 pysiaf>=0.23.3,<0.25.0
 scipy>=1.14.0,<1.15.0