google/cloud-core v1.73.2

Bug Fixes

• cs: fix style issues in BatchTest.php (dfbfbba)
• cs: format multi-line args (dfbfbba)
• move seedTable back to its original location (dfbfbba)
• spanner: fix PgReadTest index creation on shared database (dfbfbba)
• Spanner: Make System Tests Work & Work Faster (#9401) (dfbfbba)