PHPLIB-1089: Sync CSFLE spec tests for state collection namespace validation (#1051)

Synced with mongodb/specifications@8f6f4a3

Author: jmikola

tests/SpecTests/ClientSideEncryptionSpecTest.php

@@ -94,9 +94,9 @@
           },
           "encryptedFieldsMap": {
             "default.default": {
-              "escCollection": "esc",
-              "eccCollection": "ecc",
-              "ecocCollection": "ecoc",
+              "escCollection": "enxcol_.default.esc",
+              "eccCollection": "enxcol_.default.ecc",
+              "ecocCollection": "enxcol_.default.ecoc",
               "fields": []
             }
           }