Add new package java-adt

Also, take over grandfathered dependencies regex-* that I maintain.

build-constraints.yaml

@@ -47,7 +47,13 @@ packages:
         - fix-whitespace
         - hs-tags
         - goldplate
+        - regex-base
+        - regex-compat
+        - regex-pcre
+        - regex-posix
         - regex-posix-clib
+        - regex-tdfa
+        - java-adt
 
     "Diogo Biazus <diogo@biazus.ca>":
         - hasql-notifications
@@ -4980,12 +4986,7 @@ packages:
         - raw-strings-qq
         - readable
         - regex-applicative-text
-        - regex-base
-        - regex-compat
-        - regex-pcre
         - regex-pcre-builtin
-        - regex-posix
-        - regex-tdfa
         - regex-tdfa-text
         - relapse
         - relational-schemas