AsyncSniffer catch errors on join()

[gpotter2]

• raise errors on join() in AsyncSniffer
• fixes Unhandled Exception after join in AsyncSniffer caused by usage of a non-existent interface #4322

[codecov]

Codecov Report

Merging #4359 (9f24f64) into master (cd2fed9) will decrease coverage by 0.65%.
The diff coverage is 100.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4359      +/-   ##
==========================================
- Coverage   82.13%   81.48%   -0.65%     
==========================================
  Files         350      350              
  Lines       83136    83144       +8     
==========================================
- Hits        68280    67752     -528     
- Misses      14856    15392     +536     

Files	Coverage Δ
scapy/sendrecv.py	87.42% <100.00%> (+<0.01%)	⬆️

... and 20 files with indirect coverage changes