Update dependency ory-hydra-client to v2

This MR contains the following updates:

Package	Update	Change
ory-hydra-client	major	==1.11.8 -> ==2.2.0

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backend/requirements.in

@@ -14,7 +14,7 @@ kubernetes==30.1.0
 pymysql==1.1.1
 NamedAtomicLock==1.1.3
 ory-kratos-client==1.2.0
-ory-hydra-client==1.11.8
+ory-hydra-client==2.2.0
 pip-install==1.3.5
 posix-ipc==1.1.1
 PyYAML==6.0.2