makebuildserver: update SHA-256 for platform-27_r01.zip

Someone forgot to call this _r02.zip:
-ro.​build.​version.​incremental=4402310
+ro.​build.​version.​incremental=4458339

https://verification.f-droid.org/build-metadata/platform-27_r01.html

!364
2 jobs for update-platform-27_r01 in 22 minutes and 4 seconds (queued for 1 minute and 8 seconds)
Status Job ID Name Coverage
  Test
passed #43466500
metadata_v0

00:03:51

passed #43466499
test

00:22:04