ref: fix typing for slack digest notification (#80187)

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pyproject.toml

@@ -246,7 +246,6 @@ module = [
     "sentry.integrations.pipeline",
     "sentry.integrations.slack.actions.form",
     "sentry.integrations.slack.integration",
-    "sentry.integrations.slack.message_builder.notifications.digest",
     "sentry.integrations.slack.message_builder.notifications.issues",
     "sentry.integrations.slack.notifications",
     "sentry.integrations.slack.unfurl.discover",

src/sentry/integrations/slack/message_builder/notifications/digest.py

@@ -42,6 +42,6 @@ class DigestNotificationMessageBuilder(SlackNotificationsMessageBuilder):
             ).build()
             # we iterate through the list of blocks created for each alert in the digest and add
             # each block to the list of blocks which is used for the entire digest notification
-            for block in alert_as_blocks.get("blocks"):
+            for block in alert_as_blocks["blocks"]:
                 blocks.append(block)
         return self._build_blocks(*blocks)