Bumped next release version to v3.9.2 #36

Job	Run time
Benchmark / latest - nats:main	6m 2s
Benchmark / latest - nats:main	6m 2s
Coverage / latest - nats:main	3m 23s
Coverage / latest - nats:main	3m 23s
check for flaky tests / latest - nats:main	15m 29s
check for flaky tests / latest - nats:main	15m 29s
No Streaming / latest - nats:latest	3m 29s
No Streaming / latest - nats:latest	3m 29s
Older compilers (clang-8) / 20.04 - nats:latest	3m 51s
Older compilers (clang-8) / 20.04 - nats:latest	3m 51s
Older compilers (gcc-7) / 20.04 - nats:latest	3m 46s
Older compilers (gcc-7) / 20.04 - nats:latest	3m 46s
Older compilers (gcc-8) / 20.04 - nats:latest	4m 5s
Older compilers (gcc-8) / 20.04 - nats:latest	4m 5s
Other servers (latest) / latest - nats:latest	3m 43s
Other servers (latest) / latest - nats:latest	3m 37s
Other servers (v2.9.11) / latest - nats:v2.9.11	3m 35s
Other servers (v2.9.11) / latest - nats:v2.9.11	3m 35s
No TLS (clang) / latest - nats:latest	3m 35s
No TLS (clang) / latest - nats:latest	3m 35s
No TLS (gcc) / latest - nats:latest	3m 28s
No TLS (gcc) / latest - nats:latest	3m 28s
	1h 48m 46s

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