Add PG16 tests to CI using test images that have 16beta1

Depends on citusdata/the-process#135

.circleci/config.yml

@@ -6,7 +6,7 @@ orbs:
 parameters:
   image_suffix:
     type: string
-    default: '-vf5dc39a'
+    default: '-dev-681a6a2'
   pg13_version:
     type: string
     default: '13.11'
@@ -16,9 +16,12 @@ parameters:
   pg15_version:
     type: string
     default: '15.3'
+  pg16_version:
+    type: string
+    default: '16beta1'
   upgrade_pg_versions:
     type: string
-    default: '13.11-14.8-15.3'
+    default: '13.11-14.8-15.3-16beta1'
   style_checker_tools_version:
     type: string
     default: '0.8.18'
@@ -729,6 +732,10 @@ workflows:
           name: build-15
           pg_major: 15
           image_tag: '<< pipeline.parameters.pg15_version >>'
+      - build:
+          name: build-16
+          pg_major: 16
+          image_tag: '<< pipeline.parameters.pg16_version >>'
 
       - check-style
       - check-sql-snapshots
@@ -970,13 +977,6 @@ workflows:
           image_tag: '<< pipeline.parameters.pg15_version >>'
           requires: [build-15]
 
-      - tap-test-citus:
-          name: 'test-15_tap-cdc'
-          suite: cdc
-          pg_major: 15
-          image_tag: '<< pipeline.parameters.pg15_version >>'
-          requires: [build-15]
-
       - test-arbitrary-configs:
           name: 'test-13_check-arbitrary-configs'
           pg_major: 13

src/test/regress/citus_tests/common.py

@@ -93,6 +93,7 @@ def get_pg_major_version():
     13: "9.5.0",
     14: "10.2.0",
     15: "11.1.5",
+    16: "12.0devel"
 }
 
 OLDEST_SUPPORTED_CITUS_VERSION = OLDEST_SUPPORTED_CITUS_VERSION_MATRIX[PG_MAJOR_VERSION]