fix test_get_puzzle_and_solution()

[arvidn]

don't reuse the same allocator, as the debug-allocator feature has a limit on the number of times you can restore to a previous checkpoint.

Fixes this issue: https://github.com/Chia-Network/chia_rs/actions/runs/16680635805/job/47218189564#step:9:2763

---- get_puzzle_and_solution::test::test_get_puzzle_and_solution::case_02 stdout ----
file: ../../generator-tests/block-6fe59b24.txt

thread 'get_puzzle_and_solution::test::test_get_puzzle_and_solution::case_02' panicked at /home/runner/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/clvmr-0.16.1/src/allocator.rs:383:9:
assertion failed: self.versions.len() <= 255
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

[jack60612]

approved

[coveralls-official]

Pull Request Test Coverage Report for Build 16681132147

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 66.09%

---

Totals
Change from base Build 16680635818:	0.0%
Covered Lines:	11542
Relevant Lines:	17464

---

💛 - Coveralls