Revert "ref(db): Drop project_id from Environment (model state) (#45094)"

This reverts commit 6aaa964.

Co-authored-by: evanpurkhiser <[email protected]>

Author: getsentry-bot

migrations_lockfile.txt

@@ -6,5 +6,5 @@ To resolve this, rebase against latest master and regenerate your migration. Thi
 will then be regenerated, and you should be able to merge without conflicts.
 
 nodestore: 0002_nodestore_no_dictfield
-sentry: 0364_remove_project_id_from_environment
+sentry: 0363_debug_id_artifact_bundle
 social_auth: 0001_initial

src/sentry/migrations/0364_remove_project_id_from_environment.py

@@ -38,6 +38,8 @@ class Environment(Model):
 
     organization_id = BoundedBigIntegerField()
     projects = models.ManyToManyField("sentry.Project", through=EnvironmentProject)
+    # DEPRECATED, use projects
+    project_id = BoundedBigIntegerField(null=True)
     name = models.CharField(max_length=64)
     date_added = models.DateTimeField(default=timezone.now)