Resolve FK violation on job deletion IO-705

hasura/migrations/1614214431477_set_fk_public_job_conversations_jobid/down.yaml

@@ -0,0 +1,12 @@
+- args:
+    cascade: false
+    read_only: false
+    sql: |-
+      alter table "public"."job_conversations" drop constraint "job_conversations_jobid_fkey",
+                add constraint "job_conversations_jobid_fkey"
+                foreign key ("jobid")
+                references "public"."jobs"
+                ("id")
+                on update restrict
+                on delete restrict;
+  type: run_sql

hasura/migrations/1614214431477_set_fk_public_job_conversations_jobid/up.yaml

@@ -0,0 +1,10 @@
+- args:
+    cascade: false
+    read_only: false
+    sql: |-
+      alter table "public"."job_conversations" drop constraint "job_conversations_jobid_fkey",
+                   add constraint "job_conversations_jobid_fkey"
+                   foreign key ("jobid")
+                   references "public"."jobs"
+                   ("id") on update cascade on delete cascade;
+  type: run_sql