chore(legacy-v3): release 3.7.4

[release-please]

🤖 I have created a release beep boop

3.7.4 (2023-09-08)

Bug Fixes

• Always fill the topic and sub names when creating from a PubSub object (#1816) (ddf8b8a)
• Make retry policy back off more aggressively for RPCs that retry RESOURCE_EXHAUSTD (#1806) (bfcf523)
• Set grpc keepalive time|outs by default (#1814) (dedfdea)
• Simplify logic for HTTP/1.1 REST fallback option (#1809) (ee09b69)

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[release-please]

🤖 Release is at https://github.com/googleapis/nodejs-pubsub/releases/tag/v3.7.4 🌻

[release-trigger]

Triggered job: cloud-devrel/client-libraries/nodejs/release/googleapis/nodejs-pubsub/publish (2023-09-11T19:24:06.511Z)

To trigger again, remove the autorelease: triggered label (in a few minutes).

[release-tool-publish-reporter]

The release build has started, the log can be viewed here. 🌻

[release-tool-publish-reporter]

The release build failed! Please investigate!

[feywind]

> tsc -p . && cp -r protos build/

node_modules/@opentelemetry/tracing/build/src/Span.d.ts:45:5 - error TS2416: Property 'recordException' in type 'Span' is not assignable to the same property in base type 'Span'.
  Type '(exception: Exception, time?: TimeInput | undefined) => void' is not assignable to type '{ (exception: Exception, time?: TimeInput | undefined): void; (exception: Exception, attributes?: Attributes | undefined, time?: TimeInput | undefined): void; }'.
    Types of parameters 'time' and 'attributes' are incompatible.
      Type 'Attributes | undefined' is not assignable to type 'TimeInput | undefined'.
        Type 'Attributes' is not assignable to type 'TimeInput | undefined'.
          Type 'Attributes' is missing the following properties from type 'Date': toDateString, toTimeString, toLocaleDateString, toLocaleTimeString, and 37 more.

45     recordException(exception: api.Exception, time?: api.TimeInput): void;
       ~~~~~~~~~~~~~~~