Bump pbr from 6.1.1 to 7.0.1

Bumps [pbr](https://docs.openstack.org/pbr/latest/) from 6.1.1 to 7.0.1.

---
updated-dependencies:
- dependency-name: pbr
  dependency-version: 7.0.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

requirements.txt

@@ -92,7 +92,7 @@ django-lti-provider==1.0.0
 
 pyparsing==3.2.3
 
-pbr==6.1.1 # bandit
+pbr==7.0.1 # bandit
 pyyaml==6.0.2 # bandit
 stevedore==5.4.1  # bandit
 rich==14.0.0 # bandit