ref(features): Enable event attachments by default (#20335)

Enables the event attachments feature by default, which allows to
download minidumps from the issue details page and attach custom files
to error events.

src/sentry/conf/server.py

@@ -819,7 +819,7 @@ SENTRY_FEATURES = {
     # Enable the 'discover' interface.
     "organizations:discover": False,
     # Enable attaching arbitrary files to events.
-    "organizations:event-attachments": False,
+    "organizations:event-attachments": True,
     # Allow organizations to configure built-in symbol sources.
     "organizations:symbol-sources": True,
     # Allow organizations to configure custom external symbol sources.

tests/sentry/api/serializers/test_organization.py

@@ -24,6 +24,7 @@ class OrganizationSerializerTest(TestCase):
                 "advanced-search",
                 "shared-issues",
                 "open-membership",
+                "event-attachments",
                 "integrations-issue-basic",
                 "integrations-issue-sync",
                 "integrations-alert-rule",