v2.12.2

What's Changed

• Add constants to StatisticalCalculations by @n-h-diaz in #1442
• Add docsite link in schema check error message. by @hqpho in #1440
• add more names to recon_name_to_types.json by @chejennifer in #1443
• add "the" to recon names to types by @chejennifer in #1445
• Create a basic spanner graph client. by @keyurva in #1444
• [Spanner Graph] Get node edges. by @keyurva in #1446
• Define a DataSource interface and a basic spanner impl. by @keyurva in #1449
• Data refresh - Removal of license non-compliant imports by @hareesh-ms in #1447
• Add v3 wrapper of v2node by @n-h-diaz in #1448

Full Changelog: v2.12.1...v2.12.2