fix: upgrade pg snapshot during v3 upgrade if needed (#9837)

### What?

Upgrade PG snapshot if needed during v3 migration

### Why?

I'm unable to run the v3 migration as my PG snapshot is on version 5
instead the required 7

### How?

Copy code from typical migrations to upgrade PG snapshot as needed:
https://github.com/payloadcms/payload/blob/main/packages/drizzle/src/postgres/createMigration.ts#L64

Co-authored-by: Jayce Pulsipher <jpulsipher@nav.com>

packages/db-postgres/src/predefinedMigrations/v2-v3/index.ts

@@ -43,7 +43,7 @@ export const migratePostgresV2toV3 = async ({ debug, payload, req }: Args) => {
   const dir = payload.db.migrationDir
 
   // get the drizzle migrateUpSQL from drizzle using the last schema
-  const { generateDrizzleJson, generateMigration } = require('drizzle-kit/api')
+  const { generateDrizzleJson, generateMigration, upPgSnapshot } = require('drizzle-kit/api')
   const drizzleJsonAfter = generateDrizzleJson(adapter.schema)
 
   // Get the previous migration snapshot
@@ -59,10 +59,14 @@ export const migratePostgresV2toV3 = async ({ debug, payload, req }: Args) => {
     )
   }
 
-  const drizzleJsonBefore = JSON.parse(
+  let drizzleJsonBefore = JSON.parse(
     fs.readFileSync(`${dir}/${previousSnapshot}`, 'utf8'),
   ) as DrizzleSnapshotJSON
 
+  if (drizzleJsonBefore.version < drizzleJsonAfter.version) {
+    drizzleJsonBefore = upPgSnapshot(drizzleJsonBefore)
+  }
+
   const generatedSQL = await generateMigration(drizzleJsonBefore, drizzleJsonAfter)
 
   if (!generatedSQL.length) {