fix: add missing setuptools dependency to requirements.txt

Author: markuslf

requirements.txt

@@ -565,6 +565,9 @@ pbr==6.1.1 \
     #   python-keystoneclient
     #   python-novaclient
     #   stevedore
+setuptools==82.0.1 \
+    --hash=sha256:a59e362652f08dcd477c78bb6e7bd9d80a7995bc73ce773050228a348ce2e5bb
+    # via pbr
 prettytable==3.16.0 \
     --hash=sha256:3c64b31719d961bf69c9a7e03d0c1e477320906a98da63952bc6698d6164ff57 \
     --hash=sha256:b5eccfabb82222f5aa46b798ff02a8452cf530a352c31bddfa29be41242863aa