bc-build.properties needs updating

[mouse07410]

Since Gradle build does not work (at least on MacOS for me), bc-build.properties should be kept up to date.

The following depicts the problem quite succintly:

$ head gradle.properties 
org.gradle.jvmargs=-Xmx2g
version=1.84-SNAPSHOT
maxVersion=1.85
org.gradle.java.installations.auto-detect=false
org.gradle.java.installations.auto-download=false
org.gradle.java.installations.fromEnv=BC_JDK8,BC_JDK11,BC_JDK17,BC_JDK21,BC_JDK25
$ 
$ head bc-build.properties 
# NOTE: Any properties set in bc-build.user.properties override those
# set in this file. bc-build.user.properties is ignored by git and is
# intended to hold user-specific settings that are *not* committed to 
# the repository.

release.suffix: 1.83
release.name: 1.83
release.version: 1.83
release.debug: true