rspamd: Adjust patch for current release

There's a minor change in the current rspamd release 3.5 making our
integration patch fail. Adjust to suit.

rspamd/peekaboo.patch

@@ -1,5 +1,5 @@
 diff --git /usr/share/rspamd/lualib/lua_scanners/common.lua /usr/share/rspamd/lualib/lua_scanners/common.lua
-index cefec8780..d314b050d 100644
+index c2e314d39..7599b4631 100644
 --- /usr/share/rspamd/lualib/lua_scanners/common.lua
 +++ /usr/share/rspamd/lualib/lua_scanners/common.lua
 @@ -62,7 +62,7 @@ local function match_patterns(default_sym, found, patterns, dyn_weight)
@@ -57,7 +57,7 @@ index cefec8780..d314b050d 100644
  exports.check_metric_results = check_metric_results
 
 diff --git /usr/share/rspamd/lualib/lua_scanners/init.lua /usr/share/rspamd/lualib/lua_scanners/init.lua
-index 8c0f18caa..9ceab7663 100644
+index 20bea7a47..d4d4a87fd 100644
 --- /usr/share/rspamd/lualib/lua_scanners/init.lua
 +++ /usr/share/rspamd/lualib/lua_scanners/init.lua
 @@ -50,6 +50,7 @@
@@ -69,7 +69,7 @@ index 8c0f18caa..9ceab7663 100644
  exports.add_scanner = function(name, t, conf_func, check_func)
    assert(type(conf_func) == 'function' and type(check_func) == 'function',
 diff --git /usr/share/rspamd/plugins/external_services.lua /usr/share/rspamd/plugins/external_services.lua
-index 02068685b..728137ec2 100644
+index d6fedeece..852c991ff 100644
 --- /usr/share/rspamd/plugins/external_services.lua
 +++ /usr/share/rspamd/plugins/external_services.lua
 @@ -16,6 +16,7 @@ limitations under the License.
@@ -203,16 +203,17 @@ index 02068685b..728137ec2 100644
            score = 0.0,
            group = N
          }
-@@ -223,12 +270,38 @@ if opts and type(opts) == 'table' then
+@@ -223,6 +270,9 @@ if opts and type(opts) == 'table' then
          if m.symbol_type == 'postfilter' then
            t.type = 'postfilter'
-           t.priority = 3
+           t.priority = lua_util.symbols_priorities.medium
 +        elseif m.symbol_type == 'prefilter' then
 +          t.type = 'prefilter'
-+          t.priority = 3
++          t.priority = lua_util.symbols_priorities.medium
          else
            t.type = 'normal'
          end
+@@ -237,6 +287,29 @@ if opts and type(opts) == 'table' then
 
          local id = rspamd_config:register_symbol(t)