fix: hotfix for failing migration script

Author: FreekBes

prisma/migrations/20260429132457_add_project_cursus_id/migration.sql

@@ -4,8 +4,8 @@
   - Added the required column `cursus_id` to the `Project` table.
 
 */
--- Force resync of all projects to update the new `cursus_id` field
-UPDATE "Synchronization" SET "last_synced_at" = NULL WHERE "kind" = 'projects';
+-- Force resync of all projects to update the new `cursus_id` field by setting last_synced_at to 2010-01-01
+UPDATE "Synchronization" SET "last_synced_at" = '2010-01-01' WHERE "kind" = 'projects';
 
 -- AlterTable
 ALTER TABLE "Project" ADD COLUMN     "cursus_id" INTEGER;

prisma/migrations/20260429133305_add_project_difficulty/migration.sql

@@ -5,8 +5,8 @@
 
 */
 
--- Force resync of all projects to update the new `difficulty` field
-UPDATE "Synchronization" SET "last_synced_at" = NULL WHERE "kind" = 'projects';
+-- Force resync of all projects to update the new `difficulty` field by setting last_synced_at to 2010-01-01
+UPDATE "Synchronization" SET "last_synced_at" = '2010-01-01' WHERE "kind" = 'projects';
 
 -- AlterTable
 ALTER TABLE "Project" ADD COLUMN     "difficulty" INTEGER;