Merge branch 'truncate_security_findings_table' into 'master'

Truncate the `security_findings` table

See merge request gitlab-org/gitlab!49385

changelogs/unreleased/truncate_security_findings_table.yml

+---
+title: Truncate the `security_findings` table
+merge_request: 49385
+author:
+type: added

db/post_migrate/20201207151651_truncate_security_findings_table_2.rb

+# frozen_string_literal: true
+
+require_relative Rails.root.join('db', 'post_migrate', '20201102152945_truncate_security_findings_table.rb')
+
+# This is the second time we are truncating this table
+# so the migration class name has choosen like this for this reason.
+class TruncateSecurityFindingsTable2 < TruncateSecurityFindingsTable; end

db/schema_migrations/20201207151651

+93def9138efddc9cd0ace5524dc5cf6cdc0221977083324c5c0ad3cf3fb75e55
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