chore(main): release 2.3.15

[release-please]

🤖 I have created a release beep boop

2.3.15 (2022-10-03)

Dependencies

• Update dependency cachetools to v5 (#1511) (74e11d8)
• Update dependency certifi to v2022.9.24 (#1497) (8077141)
• Update dependency charset-normalizer to v2.1.1 (#1501) (d15213f)
• Update dependency click to v8.1.3 (#1502) (51a0085)
• Update dependency com.google.cloud:google-cloud-shared-dependencies to v3.0.4 (#1523) (4c3649f)
• Update dependency com.google.protobuf:protobuf-java-util to v3.21.7 (#1521) (1e1d220)
• Update dependency gcp-releasetool to v1.8.8 (#1498) (163351f)
• Update dependency google-cloud-core to v2.3.2 (#1499) (6ad4415)
• Update dependency googleapis-common-protos to v1.56.4 (#1500) (894db27)
• Update dependency jinja2 to v3.1.2 (#1503) (89c179d)
• Update dependency keyring to v23.9.3 (#1504) (96fa6c0)
• Update dependency markupsafe to v2.1.1 (#1505) (b19f6a7)
• Update dependency protobuf to v3.20.2 (#1506) (27c9cc3)
• Update dependency protobuf to v4 (#1512) (dfedde9)
• Update dependency pyjwt to v2.5.0 (#1507) (e122944)
• Update dependency requests to v2.28.1 (#1508) (37c1415)
• Update dependency typing-extensions to v4.3.0 (#1509) (bebf069)
• Update dependency zipp to v3.8.1 (#1510) (8f179df)

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[yoshi-approver]

Rubber stamped release!

[release-please]

🤖 Release is at https://github.com/googleapis/java-bigquerydatatransfer/releases/tag/v2.3.15 🌻

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[release-tool-publish-reporter]

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