caucase.{wsgi,test}: Declare functions instead of lambda-in-local

Silences pylint warnings.

caucase/test.py

@@ -1654,11 +1654,13 @@ class CaucaseTest(TestCase):
     ]
     cau_crt, = cau_ca_list
     caucase_url = self._caucase_url + '/cau'
-    updateCAFile = lambda: CaucaseClient.updateCAFile(
+    def updateCAFile():
+      return CaucaseClient.updateCAFile(
         url=caucase_url,
         ca_crt_path=self._client_user_ca_crt,
       )
-    updateCRLFile = lambda: CaucaseClient.updateCRLFile(
+    def updateCRLFile():
+      return CaucaseClient.updateCRLFile(
         url=caucase_url,
         crl_path=self._client_user_crl,
         ca_list=cau_ca_list,

caucase/wsgi.py

@@ -495,7 +495,8 @@ class Application(object):
         },
       },
     }
-    getHALMethodDict = lambda name, title: {
+    def getHALMethodDict(name, title):
+      return {
         'GET': {
           'do': self.getHAL,
           'context_is_routing': True,