Merge pull request #1427 from roschaefer/update_pg

build: Update pg

backend/Gemfile.lock

@@ -91,7 +91,7 @@ GEM
       multi_json
       pg
     coderay (1.1.2)
-    concurrent-ruby (1.1.4)
+    concurrent-ruby (1.1.7)
     connection_pool (2.2.2)
     crack (0.4.3)
       safe_yaml (~> 1.0.0)
@@ -116,7 +116,7 @@ GEM
       globalize (~> 5.0, >= 5.0.0)
     hashdiff (0.3.7)
     highline (2.0.1)
-    i18n (1.5.3)
+    i18n (1.8.5)
       concurrent-ruby (~> 1.0)
     jar-dependencies (0.4.0)
     jaro_winkler (1.5.2)
@@ -157,8 +157,8 @@ GEM
     method_source (0.9.2)
     mini_mime (1.0.1)
     mini_portile2 (2.4.0)
-    minitest (5.11.3)
-    multi_json (1.13.1)
+    minitest (5.14.2)
+    multi_json (1.15.0)
     multipart-post (2.0.0)
     net-scp (1.2.1)
       net-ssh (>= 2.6.5)
@@ -178,9 +178,9 @@ GEM
     parallel (1.13.0)
     parser (2.6.0.0)
       ast (~> 2.4.0)
-    pg (1.1.4)
-    pg (1.1.4-x64-mingw32)
-    pg (1.1.4-x86-mingw32)
+    pg (1.2.3)
+    pg (1.2.3-x64-mingw32)
+    pg (1.2.3-x86-mingw32)
     pg_search (2.1.4)
       activerecord (>= 4.2)
       activesupport (>= 4.2)
@@ -322,7 +322,7 @@ GEM
     thor (0.20.3)
     thread_safe (0.3.6)
     thread_safe (0.3.6-java)
-    tzinfo (1.2.5)
+    tzinfo (1.2.7)
       thread_safe (~> 0.1)
     tzinfo-data (1.2018.5)
       tzinfo (>= 1.0.0)