Update PullApprove configuration

Signed-off-by: Chris Aniszczyk <[email protected]>

Author: caniszczyk

.pullapprove.yml

@@ -4,43 +4,24 @@ requirements:
   signed_off_by:
     required: true
 
-always_pending:
-  title_regex: '^WIP'
-  explanation: 'Work in progress...'
-
 group_defaults:
   required: 2
   approve_by_comment:
     enabled: true
-    approve_regex: '^LGTM'
-    reject_regex: '^Rejected'
+    approve_regex: '^(Approved|lgtm|LGTM|:shipit:|:star:|:\+1:|:ship:)'
+    reject_regex: ^Rejected
   reset_on_push:
     enabled: true
   author_approval:
     ignored: true
+  always_pending:
+    title_regex: ^WIP
+    explanation: 'Work in progress...'
   conditions:
     branches:
       - master
 
 groups:
   image-spec:
     teams:
-      - image-spec-maintainers
-  image-tools:
-    teams:
-      - image-tools-maintainers
-  go-digest:
-    teams:
-      - go-digest-maintainers
-  runc:
-    teams:
-      - runc-maintainers
-  runtime-spec:
-    teams:
-      - runtime-spec-maintainers
-  runtime-tools:
-    teams:
-      - runtime-tools-maintainers
-  selinux:
-    teams:
-      - selinux-maintainers
+      - artifacts-maintainers