Add catch for invalid time index frequencies

[eccabay]

Fixes a bug where uninferrable time indices were causing make_pipeline to fail

[codecov]

Codecov Report

Merging #3800 (2aed64d) into main (a9c02aa) will increase coverage by 0.1%.
The diff coverage is 100.0%.

@@           Coverage Diff           @@
##            main   #3800     +/-   ##
=======================================
+ Coverage   99.7%   99.7%   +0.1%     
=======================================
  Files        343     343             
  Lines      35794   35798      +4     
=======================================
+ Hits       35657   35661      +4     
  Misses       137     137             

Impacted Files	Coverage Δ
evalml/pipelines/utils.py	99.6% <100.0%> (+0.1%)	⬆️
evalml/tests/pipeline_tests/test_pipeline_utils.py	99.8% <100.0%> (+0.1%)	⬆️

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.