feat(crons): Add project flag for created monitors and checkins (#43122)

Will be used to track if a project has created a monitor and if they
have sent a check-in

part of https://github.com/getsentry/team-crons/issues/13

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: 0350_add_codecov_access_flag
+sentry: 0351_project_has_checkins_monitors
 social_auth: 0001_initial

src/sentry/migrations/0351_project_has_checkins_monitors.py

@@ -0,0 +1,62 @@
+# Generated by Django 2.2.28 on 2023-01-11 19:19
+
+from django.db import migrations
+
+import bitfield.models
+from sentry.new_migrations.migrations import CheckedMigration
+
+
+class Migration(CheckedMigration):
+    # This flag is used to mark that a migration shouldn't be automatically run in production. For
+    # the most part, this should only be used for operations where it's safe to run the migration
+    # after your code has deployed. So this should not be used for most operations that alter the
+    # schema of a table.
+    # Here are some things that make sense to mark as dangerous:
+    # - Large data migrations. Typically we want these to be run manually by ops so that they can
+    #   be monitored and not block the deploy for a long period of time while they run.
+    # - Adding indexes to large tables. Since this can take a long time, we'd generally prefer to
+    #   have ops run this and not block the deploy. Note that while adding an index is a schema
+    #   change, it's completely safe to run the operation after the code has deployed.
+    is_dangerous = False
+
+    dependencies = [
+        ("sentry", "0350_add_codecov_access_flag"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="project",
+            name="flags",
+            field=bitfield.models.BitField(
+                (
+                    ("has_releases", "This Project has sent release data"),
+                    ("has_issue_alerts_targeting", "This Project has issue alerts targeting"),
+                    ("has_transactions", "This Project has sent transactions"),
+                    ("has_alert_filters", "This Project has filters"),
+                    ("has_sessions", "This Project has sessions"),
+                    ("has_profiles", "This Project has sent profiles"),
+                    ("has_replays", "This Project has sent replays"),
+                    (
+                        "spike_protection_error_currently_active",
+                        "spike_protection_error_currently_active",
+                    ),
+                    (
+                        "spike_protection_transaction_currently_active",
+                        "spike_protection_transaction_currently_active",
+                    ),
+                    (
+                        "spike_protection_attachment_currently_active",
+                        "spike_protection_attachment_currently_active",
+                    ),
+                    (
+                        "has_minified_stack_trace",
+                        "This Project has event with minified stack trace",
+                    ),
+                    ("has_cron_monitors", "This Project has cron monitors"),
+                    ("has_cron_checkins", "This Project has sent check-ins"),
+                ),
+                default=10,
+                null=True,
+            ),
+        ),
+    ]

src/sentry/models/project.py

@@ -153,6 +153,8 @@ class Project(Model, PendingDeletionMixin, SnowflakeIdMixin):
                 "spike_protection_attachment_currently_active",
             ),
             ("has_minified_stack_trace", "This Project has event with minified stack trace"),
+            ("has_cron_monitors", "This Project has cron monitors"),
+            ("has_cron_checkins", "This Project has sent check-ins"),
         ),
         default=10,
         null=True,