declare id NOT NULL so that it can be used as a cursor for incremental syncs in tests (#15774)

Author: pmossman

airbyte-tests/src/acceptanceTests/resources/postgres_init.sql

@@ -1,7 +1,7 @@
 CREATE
     TABLE
         id_and_name(
-            id INTEGER,
+            id INTEGER NOT NULL,
             name VARCHAR(200)
         );
 

airbyte-tests/src/acceptanceTests/resources/postgres_second_schema_multiple_tables.sql

@@ -4,7 +4,7 @@ CREATE
 CREATE
     TABLE
         staging.cool_employees(
-            id INTEGER,
+            id INTEGER NOT NULL,
             name VARCHAR(200)
         );
 
@@ -38,7 +38,7 @@ INSERT
 CREATE
     TABLE
         staging.awesome_people(
-            id INTEGER,
+            id INTEGER NOT NULL,
             name VARCHAR(200)
         );
 

airbyte-tests/src/acceptanceTests/resources/postgres_separate_schema_same_table.sql

@@ -4,7 +4,7 @@ CREATE
 CREATE
     TABLE
         staging.id_and_name(
-            id INTEGER,
+            id INTEGER NOT NULL,
             name VARCHAR(200)
         );