Fix some small fluent-bit bugs

[ryanjjung]

Bugs fixed:

• Log untagged records to stdout so we can actually see them in our logs and respond to them.
• Some fields that need to be treated like strings sometimes come through as non-strings (like node IDs that Stalwart treats as integers), so we have to convert them first.
• There were some incorrect VPC peering values in here. I've corrected those.

[aatchison]

Lgtm