update firmware sizes

Author: br0kenpixel

README.md

@@ -200,9 +200,9 @@ To build a debug image (or flash it) remove the `--release` flag from the above
 </details>
 
 ## Build variants
-Firmware size (as of commit `f60584e`):
-- Release build: `868,048/4,096,000 bytes, 21.19%`
-- Debug build: `1,213,344/4,096,000 bytes, 29.62%`
+Firmware size (as of commit `7e88d94`):
+- Release build: `870,656/4,096,000 bytes, 21.26%`
+- Debug build: `1,215,840/4,096,000 bytes, 29.68%`
 
 Debug builds may be slower and contain a lot of debug messages. As such they are slightly larger.