Update minimum dependency versions

[kmcbride]

Fixes an issue with bootstrap failing when building with Xcode 13.

[codecov]

Codecov Report

Merging #180 (b7e542c) into master (4a256c4) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #180   +/-   ##
=======================================
  Coverage   95.55%   95.55%           
=======================================
  Files          43       43           
  Lines        1462     1462           
=======================================
  Hits         1397     1397           
  Misses         65       65           

Flag	Coverage Δ
ios	95.55% <ø> (ø)
macspm	95.51% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 4a256c4...b7e542c. Read the comment docs.

[rastersize]

Thank you!