Update h2 and flyway

Sadly it is necessary to fix an existing changeset for H2.

modules/store/src/main/resources/db/migration/h2/V1.39.0__collective_id.sql

@@ -1,5 +1,5 @@
 -- add new id column
-alter table "collective" add column "id" bigserial not null;
+alter table "collective" add column "id" bigserial not null unique;
 create unique index "collective_id_idx" on "collective"("id");
 
 -- change references: source

modules/store/src/main/resources/db/migration/h2/V1.9.3__joblog_counter.sql

@@ -1,2 +1,2 @@
 ALTER TABLE "joblog"
-ADD COLUMN "counter" bigint auto_increment;
+ADD COLUMN "counter" bigint generated always as identity;