deps: update dependency com.google.cloud:google-cloud-spanner-bom to v6.37.0

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
com.google.cloud:google-cloud-spanner-bom	6.36.1 -> 6.37.0

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Release Notes

googleapis/java-spanner

v6.37.0

Compare Source

Features

• Adding new fields for Serverless analytics (#​2315) (ce9cd74)

Bug Fixes

• Update test certificate name. (#​2300) (18e76d6)

Dependencies

• Update dependency com.google.api.grpc:proto-google-cloud-spanner-executor-v1 to v1.3.0 (#​2306) (8372250)
• Update dependency com.google.cloud:google-cloud-monitoring to v3.13.0 (#​2311) (6ba613b)
• Update dependency com.google.cloud:google-cloud-shared-dependencies to v3.4.0 (#​2312) (266c49c)
• Update dependency com.google.cloud:google-cloud-trace to v2.12.0 (#​2313) (e5f76c6)
• Update dependency org.json:json to v20230227 (#​2310) (badcc14)

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