Build CI - Font missing 1 characters

[lesamouraipourpre]

I noticed today while looking at the build logs from ports_windows.yml for something else that the error Font missing 1 characters appears on the feather_mo_express build for zh_Latn_pinyin.

I have verified that the same error appears in the full Build CI workflow for this board

Build feather_m0_express for zh_Latn_pinyin took 17.56s and succeeded
make: Entering directory '/home/runner/work/circuitpython/circuitpython/ports/atmel-samd'
Use make V=1, make V=2 or set BUILD_VERBOSE similarly in your environment to increase build verbosity.
Font missing 1 characters

249524 bytes used, 4172 bytes free in flash firmware space out of 253696 bytes (247.75kB).
11828 bytes used, 20940 bytes free in ram for stack and heap out of 32768 bytes (32.0kB).

Ref: https://github.com/adafruit/circuitpython/actions/runs/899901990

I don't know if this affects other boards or translations as I couldn't figure an easy way to scan the logs for an entire build.

Without knowing what the character is, it's a challenge to say how much of an issue this will be for users.