bsbf-resources: update to GIT HEAD of 2026-05-16

bsbf-resources: update to GIT HEAD of 2026-05-16

Update bsbf-resources to the GIT HEAD of 2026-05-16.

- files/etc/uci-defaults/99-bsbf-bonding:
  - Do not ever exit non-zero. It prevents the script from being deleted
    after it's run.
  - Fix creating a new wan zone.
  - Do not disable using DNS servers advertised by the ISP. We can now do
    this as we transparently proxy all DNS traffic to Xray which resolves
    queries.

- files/usr/sbin/bsbf-bonding:
  - Attempting to source a file that doesn't exist breaks the rest of the
    script. Therefore, only source /etc/bsbf/bsbf-bonding.conf if it
    exists. Then, print to stderr if the configuration is improper.

Signed-off-by: Chester A. Unal <redacted>