Rename abstract_target and add comment with its purpose

Author: mokagio

Podfile

@@ -51,7 +51,8 @@ target 'WordPressAuthenticatorTests' do
   pod 'Specta', '1.0.7'
 end
 
-abstract_target 'CI' do
+# Used to donwload CLI tools.
+abstract_target 'Tools' do
   pod 'SwiftLint', '~> 0.49'
 end
 

Podfile.lock

@@ -100,6 +100,6 @@ SPEC CHECKSUMS:
   WordPressUI: 1cf47a3b78154faf69caa18569ee7ece1e510fa0
   wpxmlrpc: bf55a43a7e710bd2a4fb8c02dfe83b1246f14f13
 
-PODFILE CHECKSUM: 2a653425c540da12b5282d121d365e64faf8de4a
+PODFILE CHECKSUM: 4aeaf3c769fe14a1696e9e1c42b609b7e9f8858c
 
 COCOAPODS: 1.11.3