Bump gwcs from 0.26.0 to 1.0.3

Bumps [gwcs](https://github.com/spacetelescope/gwcs) from 0.26.0 to 1.0.3.
- [Release notes](https://github.com/spacetelescope/gwcs/releases)
- [Changelog](https://github.com/spacetelescope/gwcs/blob/main/CHANGES.rst)
- [Commits](spacetelescope/gwcs@0.26.0...1.0.3)

---
updated-dependencies:
- dependency-name: gwcs
  dependency-version: 1.0.3
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

pyproject.toml

@@ -34,7 +34,7 @@ dependencies = [
     "astroquery == 0.4.11",
     "cmocean == 4.0.3",
     "crds == 13.1.3",
-    "gwcs == 0.26.0",
+    "gwcs == 1.0.3",
     "image-registration == 0.2.9",
     "jwst == 1.20.2",
     "lmfit == 1.3.4",