Merge pull request 'Update test script' (#182) from update-test-script into main

Reviewed-on: https://yerbamate.ml/LemmyNet/lemmy/pulls/182

scripts/test.sh

@@ -5,9 +5,5 @@ psql -U lemmy -d postgres -c "DROP DATABASE lemmy;"
 psql -U lemmy -d postgres -c "CREATE DATABASE lemmy;"
 
 export LEMMY_DATABASE_URL=postgres://lemmy:password@localhost:5432/lemmy
-# Commenting since this will overwrite schema.rs, which will break things now
-# diesel migration run
-# Integration tests only work on stable due to a bug in config-rs
-# https://github.com/mehcode/config-rs/issues/158
-RUST_BACKTRACE=1 RUST_TEST_THREADS=1 \
+RUST_BACKTRACE=1 \
   cargo test --workspace --no-fail-fast