chore(deps): update dependency ffi from v1.15.5 to v1.17.1

Author: renovate[bot]

Gemfile

@@ -69,7 +69,7 @@ gem 'map_layers', '0.0.5'
 gem 'rgeo', '1.1.2'
 gem 'georuby-ext', git: 'https://github.com/entur/georuby-ext.git', branch: 'master'
 gem 'georuby', '2.3.0' # Fix version for georuby-ext because api has changed
-gem 'ffi', '1.15.5'
+gem 'ffi', '1.17.1'
 gem 'ffi-proj4', git: 'https://github.com/entur/ffi-proj4', branch: 'master'
 
 gem 'mimemagic'

Gemfile.lock

@@ -322,7 +322,7 @@ GEM
     faraday-retry (1.0.3)
     faraday_middleware (1.2.1)
       faraday (~> 1.0)
-    ffi (1.15.5)
+    ffi (1.17.1)
     ffi-geos (2.4.0)
       ffi (>= 1.0.0)
     figaro (1.2.0)
@@ -748,7 +748,7 @@ DEPENDENCIES
   factory_bot_rails (= 6.2.0)
   fakeweb!
   faraday_middleware (= 1.2.1)
-  ffi (= 1.15.5)
+  ffi (= 1.17.1)
   ffi-proj4!
   figaro (= 1.2.0)
   font-awesome-sass (= 4.2.2)