fix: Ignore failure to extract text draft title unless it is needed

[jennifer-richards]

Fixes a few problems related to the async submission refactoring.

[codecov]

Codecov Report

Merging #5730 (bf3229b) into main (d595aac) will increase coverage by 0.00%.
The diff coverage is 83.33%.

❗ Current head bf3229b differs from pull request most recent head 3f4db0d. Consider uploading reports for the commit 3f4db0d to get more accurate results

@@           Coverage Diff           @@
##             main    #5730   +/-   ##
=======================================
  Coverage   88.73%   88.73%           
=======================================
  Files         285      285           
  Lines       39852    39852           
=======================================
+ Hits        35362    35363    +1     
+ Misses       4490     4489    -1     

Impacted Files	Coverage Δ
ietf/submit/utils.py	90.17% <80.00%> (+0.02%)	⬆️
ietf/utils/draft.py	73.19% <100.00%> (-0.11%)	⬇️

... and 6 files with indirect coverage changes