Brad Fitzpatrick 5b3f5eabb5 control/controlclient: fix leaked http2 goroutines on shutdown
If a noise dial was happening concurrently with shutdown, the
http2 goroutines could leak.

Updates tailscale/corp#14950
Updates tailscale/corp#14515
Updates tailscale/corp#14139
Updates tailscale/corp#13175

Signed-off-by: Brad Fitzpatrick <brad@danga.com>
2023-09-28 11:16:46 -07:00
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