roleback orchestrato-core to 2.6.1

requirements.txt

-orchestrator-core==2.7.4
+orchestrator-core==2.6.1
 requests==2.31.0
 infoblox-client~=0.6.0
 pycountry==23.12.11

setup.py

@@ -11,7 +11,7 @@ setup(
     url="https://gitlab.software.geant.org/goat/gap/geant-service-orchestrator",
     packages=find_packages(),
     install_requires=[
-        "orchestrator-core==2.7.4",
+        "orchestrator-core==2.6.1",
         "requests==2.31.0",
         "infoblox-client~=0.6.0",
         "pycountry==23.12.11",