test(pkgs_spec): update for CVE releases `3000.2` & `2019.2.4`

* https://docs.saltstack.com/en/latest/topics/releases/3000.2.html
* https://docs.saltstack.com/en/latest/topics/releases/2019.2.4.html

test/integration/v201902-py2/controls/pkgs_spec.rb

 # frozen_string_literal: true
 
+# Prepare platform "finger"
+platform_finger = "#{platform[:name]}-#{platform[:release].split('.')[0]}"
+
 version =
   case platform[:family]
-  when 'redhat'
-    '2019.2.3-1.el7'
   when 'debian'
-    '2019.2.3+ds-1'
+    '2019.2.4+ds-1'
+  when 'redhat'
+    case platform_finger
+    when 'centos-7'
+      '2019.2.4-1.el7'
+    when 'centos-6'
+      '2019.2.4-1.el6'
+    when 'amazon-2'
+      '2019.2.4-1.amzn2'
+    when 'amazon-2018'
+      '2019.2.4-1.amzn1'
+    end
   end
 
 control 'salt packages' do

test/integration/v201902-py3/controls/pkgs_spec.rb

 # frozen_string_literal: true
 
+# Prepare platform "finger"
+platform_finger = "#{platform[:name]}-#{platform[:release].split('.')[0]}"
+
 version =
   case platform[:family]
+  when 'debian'
+    '2019.2.4+ds-1'
   when 'redhat'
-    case platform[:name]
-    when 'amazon'
-      '2019.2.3-1.amzn2'
-    when 'centos'
-      '2019.2.3-1.el8'
+    case platform_finger
+    when 'centos-8'
+      '2019.2.4-1.el8'
+    when 'centos-7'
+      '2019.2.4-1.el7'
+    when 'amazon-2'
+      '2019.2.4-1.amzn2'
     end
   when 'fedora'
-    '2019.2.1rc0-3.fc31'
+    # Issue in the upstream repo, should be `3000.2`
+    '3000.1-1.fc31'
   when 'suse'
+    # Issue in the upstream repo, should be `2019.2.4`
     '2019.2.0-lp151.28.1'
-  when 'debian'
-    '2019.2.3+ds-1'
   end
 
 control 'salt packages' do

test/integration/v3000-py3/controls/pkgs_spec.rb

 # frozen_string_literal: true
 
+# Prepare platform "finger"
+platform_finger = "#{platform[:name]}-#{platform[:release].split('.')[0]}"
+
 version =
   case platform[:family]
+  when 'debian'
+    '3000.2+ds-1'
   when 'redhat'
-    case platform[:name]
-    when 'amazon'
-      '3000.1-1.amzn2'
-    when 'centos'
-      '3000.1-1.el8'
+    case platform_finger
+    when 'centos-8'
+      '3000.2-1.el8'
+    when 'centos-7'
+      '3000.2-1.el7'
+    when 'amazon-2'
+      '3000.2-1.amzn2'
     end
   when 'fedora'
+    # Issue in the upstream repo, should be `3000.2`
     '3000.1-1.fc31'
   when 'suse'
-    '3000-lp151.28.1'
-  when 'debian'
-    '3000.1+ds-1'
+    # Issue in the upstream repo, should be `3000.2`
+    '2019.2.0-lp151.28.1'
   end
 
 control 'salt packages' do