[out_forward] Don't assumed 'secure' mode just because TLS is on
[out_forward] Don't assumed 'secure' mode just because TLS is on

If we are using fluent-bit -> fluent-bit (e.g. fwd from one
to another) we might have a TLS tunnel in the middle courtesy
of e.g. stunnel. We are secured by client-certificate, but not
by 'forward protocol secure mode'.

Signed-off-by: Don Bowman <1f1e67e5fdb25d2e5cd18ddc0fee425272daab56@agilicus.com>

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