Bump djangosaml2 from 1.7.0 to 1.8.0 (#8887)

Bumps [djangosaml2](https://github.com/IdentityPython/djangosaml2) from 1.7.0 to 1.8.0.
- [Release notes](https://github.com/IdentityPython/djangosaml2/releases)
- [Changelog](https://github.com/IdentityPython/djangosaml2/blob/master/CHANGES)
- [Commits](IdentityPython/djangosaml2@v1.7.0...v1.8.0)

---
updated-dependencies:
- dependency-name: djangosaml2
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements.txt

@@ -72,7 +72,7 @@ cvss==2.6
 django-fieldsignals==0.7.0
 hyperlink==21.0.0
 django-test-migrations==1.3.0
-djangosaml2==1.7.0
+djangosaml2==1.8.0
 drf-spectacular==0.26.5
 django-ratelimit==4.1.0
 argon2-cffi==23.1.0