Add support for multiline cuttlefish values in LDAP plugin

The cuttlefish project recently added support for multiline values. The
primary motivation for this is so that LDAP settings like
`vhost_access_query` could now be expressed in `rabbitmq.conf`, rather
than requiring `advanced.config`.

These changes require cuttlefish version `3.6.0` or later.

References:
* Kyorai/cuttlefish#60
* Kyorai/cuttlefish#63

Author: lukebakken

deps/rabbitmq_auth_backend_ldap/test/config_schema_SUITE_data/rabbitmq_auth_backend_ldap.snippets

@@ -1,3 +1,6 @@
+%% vim:ft=erlang:
+%% -*- mode: erlang; -*-
+
 [{ldap_servers,
   "auth_ldap.servers.1 = DC1.domain.com
    auth_ldap.servers.2 = DC1.eng.domain.com",
@@ -334,5 +337,16 @@
              {versions,['tlsv1.2','tlsv1.1']}
              ]},
         {use_ssl, true}]}],
-  []}
+  []},
+
+ {vhost_access_query,
+  "auth_ldap.vhost_access_query = '''
+       {in_group,"ou=${vhost}-users,ou=vhosts,dc=example,dc=com"}
+   '''",
+  [
+    {rabbitmq_auth_backend_ldap, [
+       {vhost_access_query, {in_group,"ou=${vhost}-users,ou=vhosts,dc=example,dc=com"}}
+    ]}
+  ],
+  [rabbitmq_auth_backend_ldap]}
 ].

rabbitmq-components.mk

@@ -43,7 +43,12 @@ dep_accept = hex 0.3.5
 dep_cowboy = hex 2.14.1
 dep_cowlib = hex 2.16.0
 dep_credentials_obfuscation = hex 3.5.0
-dep_cuttlefish = hex 3.5.0
+
+# TODO LRB
+# dep_cuttlefish = hex 3.6.0
+dep_cuttlefish = git https://github.com/Kyorai/cuttlefish main
+# TODO LRB
+
 dep_gen_batch_server = hex 0.8.8
 dep_jose = hex 1.11.10
 dep_khepri = hex 0.17.2