fix(select): Update typography to match latest guidance

[williamernest]

Update select component to use the subtitle1 type.

[codecov-io]

Codecov Report

Merging #2615 into master will increase coverage by <.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #2615      +/-   ##
==========================================
+ Coverage   98.48%   98.48%   +<.01%     
==========================================
  Files          98       98              
  Lines        4230     4238       +8     
  Branches      537      537              
==========================================
+ Hits         4166     4174       +8     
  Misses         64       64

Impacted Files	Coverage Δ
packages/mdc-select/constants.js	100% <0%> (ø)	⬆️
packages/mdc-select/foundation.js	100% <0%> (ø)	⬆️

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