pylint

* fix:  Consider iterating the dictionary directly instead of calling .keys() (consider-iterating-dictionary)
* add pydantic-pylint plugin: this plugin makes @field_validator, etc. to @classmethod equivalents

Change-Id: I42b5e6c45901a6d509be21ace6ba80155c2d260e

.pylintrc

@@ -14,7 +14,8 @@ load-plugins=
     tests.testlib.pylint_checker_forbidden_objects,
     tests.testlib.pylint_checker_cmk_module_layers,
     tests.testlib.pylint_checker_layering_violation,
-    pylint.extensions.bad_builtin
+    pylint.extensions.bad_builtin,
+    pylint_pydantic
 jobs=0
 # pickle collected data for later comparisons. Not used in our CI and makes runs faster
 persistent=no

Pipfile

@@ -89,6 +89,7 @@ pexpect = "*" # used for update testing
 dill = "*"
 jsonschema = "*"
 polyfactory = "*" # used for generating mock data for unit tests
+pylint-pydantic = "*"
 checkmk-dev-tools = "==0.1.24"  # provides tooling for build artifacts
 fastapi = "*"  # needed to run fake idp for cse tests
 uvicorn = "*"