antlr: status change on tests.reproducible-builds.org/debian

[Reproducible Builds folks]

Dear maintainer,

The reproducibility status of the package antlr changed during the
continuous testing.
See the following notes for more details:

2023-06-17 01:10 https://tests.reproducible-builds.org/debian/unstable/amd64/antlr changed from reproducible -> FTBFS

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-- 
The Reproducible Builds folks