fix incorrect keys in checksums for jaxlib component in jax 0.4.25 easyconfig

[boegel]

(created using eb --new-pr)

fix for:

ERROR: Installation of jax-0.4.25-gfbf-2023a-CUDA-12.1.1.eb failed: "Missing checksum for xla-4ccfe33c.tar.gz in {'xla-4ccfe33c71665ddcbca5b127fefe8baa3ed632d4.tar.gz': '8a59b9af7d0850059d7043f7043c780066d61538f3af536e8a10d3d717f35089'}"

[boegel]

Test report by @boegel
SUCCESS
Build succeeded for 1 out of 1 (1 easyconfigs in total)
node3509.doduo.os - Linux RHEL 8.8, x86_64, AMD EPYC 7552 48-Core Processor, Python 3.6.8
See https://gist.github.com/boegel/740266a8edaf7bbfeaaed2afe23bb529 for a full test report.

edit: this was with --fetch, but that's enough to prove that the fix works