f51460749a ci: disable the nixos-search test (Jonas Nick)
3b798f5ebf test: increase VM memory to 4 GiB (Jonas Nick)
17f0d98c22 update nixpkgs (Jonas Nick)
Pull request description:
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Tree-SHA512: 0e40353d9d7937dd7a80c05416360c30ada7ee231d6263883072d60a707443e765d35f6a393e718ed1ef66f2e2cdbd1deadd6cd720dccb5c5e18711159cda38a